Within a population extreme, phenotypes are often observable within the same species. Which of the following explains why sexual selection often causes genetic variations that express extreme phenotypes within a population?

Genetic variation from sexual reproduction produces new phenotypes.

Only genes for favorable traits are passed on to future generations.

Only the intermediate genes are allowed to be passed on to offspring.

Organisms reproduce with closely related species, which results in extreme phenotypes.

Answers

Answer 1
Genetic Variation

Explanation:

Genetic variation from sexual reproduction produces new phenotypes Sexual reproduction promotes hereditary variety by producing distinctive quality mixesMeiosis is the process by which sex cells or gametes are developedThe  genetic recombination of qualities likewise occurs during crossing over or the swapping of quality portions in homologous chromosomes during meiosis Phenotypes can be caused about by qualities, ecological components, or a blend of bothPhenotypic variety, at that point, is the variability in phenotypes that exists in a population

Related Questions

Which best describes how the common cold spreads in the human body

Answers

Explanation:

"The best description how the common cold spreads in the human body is by the replication of virus inside the respiratory track (cells of respiratory tract) of the body."

Answer: Viruses replicate inside respiratory cells.

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You are performing developmental studies during which you extract mesophyll cells from an unusual-looking leaf. In laboratory culture, individual mesophyll cells from this leaf can be induced to regenerate entire plants. How would these cells be classified

Answers

Answer:

meristematic cells

Explanation:

The cells will be classified as meristematic cells.

Meristematic cells are undifferentiated cells that are capable of actively dividing and differentiating to give rise rise various tissues/organs of a plant.

Generally in plants, meristematic cells are of three types:

Those that are capable of dividing and differentiating to give rise to above ground or below ground tissues/organs such as roots, leaves and flowers, also known as apical meristems.Those that allow rapid stem elongation and repair, especially in monocots, also known as intercalary meristems.Those that give rise to various parts of a flower, also known as flora meristems.

The cells in this case are capable of dividing and differentiating to give rise to the various organs of a complete plant. Hence, they are considered as meristematic cells.

True- breeding plants ______. cannot be cross-fertilized produce sterile offspring when cross-fertilized self-fertilize to produce offspring identical to the parent become sterile after three generations self-fertilize to produce hybrid offspring

Answers

Answer:

Self-fertilize to produce offspring identical to the parent

Explanation:

True-breeding plants are the breeding plants which are homozygous for the trait that is they are homozygous for the dominant trait and for the recessive trait.

This can be confirmed by making a cross between them in which they are self-fertilized. This self-fertilization produces the offsprings identical to the parents with the same phenotype.

For example:

Green pod (dominant trait)- GG

yellow pod (recessive trait)- gg

cross -  GG X gg

                    g     g

           G      Gg   Gg

         G     Gg  Gg

All the offsprings are of green color as all have the Gg genotype in which the dominant allele is G and the recessive

       

Bacteria collected from a severely inflamed wound are sent to the lab for analysis. The results come back as follows: Gram-positive cocci in irregular clusters, kinase and coagulase positive, and able to grow in the presence of most antibiotics except vancomycin. The bacteria in the wound are most likely:

Answers

Answer:

Explanation:

Since the result shows the bacterial culture was irregular clusters of Gram-positive cocci, kinase and coagulase positive, it is should be Staphylococcus aureus and furthermore, it is able to grow in the presence of most antibiotics except vancomycin, the bacterial most likely methicillin-resiistant Staphylococcus aureus (MRSA). This organism is believed to harbor a chromosomal gene called mecA which confers on it the ability to be ressitant to methicillin and other β-lactam drugs antibiotics such as penicillin, cephalosporins  and carbapenems

In treating alcoholism, one can condition the response of nausea and queasiness of the stomach to the sight, smell and taste of alcohol. This technique, designed to replace a positive emotional response to a certain stimuli with a negative one, is called____.

Answers

Answer:

aversive counterconditioning

Explanation:

Aversive counterconditioning is a technique used as a therapy usually to break addictions in people. Aversive counterconditioning involves changing how we respond to a stimulus by using an unpleasant stimulus to reduce the likelihood or frequency of an undesirable behavior of being exhibited.

For example, as seen in the question given above, aversive counterconditioning is used to reduce the behavior of alcoholism, as positive emotional response to alcohol, which makes it pleasurable, is replaced with a negative one such as the response of nausea and queasiness of the stomach to the sight, smell and taste of alcohol. This would discourage the individual from taking alcohol, or reduce the tendency to take alcohol.

Choose the the option that best describe how cytokinesis works in animal and plant cells.
1. Animal cells: A cell plate forms along the equator of the parent cell and a new cell wall and plasma membrane form on either side of the plate.
2. Animal cells: The plasma membrane pinches in along the parent cell's equator to form two daughter cells.
3. Plant cell: The plasma membrane pinches in along the parent cell's equator to form two daughter cells.

Answers

Answer is Option "1"

Explanation:

In animals, cell division occurs when a band of cytoskeletal strands called the contractile ring contracts internal and squeezes the phone in two, a procedure called contractile cytokinesis. The space created as the ring contracts internal is known as the cleavage wrinkle. Creature cells can be squeezed in two because they're relatively soft and squishyPlant cells are much stiffer than animal cells; they're encompassed by an inflexible cell divider and have high inside weight. Along these lines, plant cells separate in two by building another structure down the center of the cell. This structure, known as the cell plate, is comprised of plasma layer and cell wall segments conveyed in vesicles, and it parcels the cell in two

Final answer:

Cytokinesis differs in animal and plant cells; animal cells form a cleavage furrow through actin filament contraction to divide, while in plant cells, a cell plate forms from Golgi vesicles, leading to the formation of separate plasma membranes and new cell walls.

Explanation:

The process of cytokinesis differs between animal and plant cells. In animal cells, cytokinesis involves the formation of a contractile ring of actin filaments just inside the plasma membrane at what was the metaphase plate during mitosis. The ring contracts, creating a cleavage furrow that deepens until the cell is pinched in two, creating two separate daughter cells.

In contrast, during plant cell cytokinesis, Golgi vesicles gather at the former metaphase plate, forming a structure known as the phragmoplast. From here, a cell plate begins to form that extends outward toward the existing cell walls. Eventually, the membranes from these vesicles fuse to create a new plasma membrane, effectively splitting the cell into two. A new cell wall is then constructed along each side of this cell plate, finalizing the division.

an organism inherits it’s genetic material from it’s-
1. offspring
2. food source
3. parents
4. environments

Answers

Parents, genetic material is only ever passed through reproduction.

Final answer:

An organism inherits its genetic material from its parents via genes on the chromosomes, with variations contributing to diversity among offspring. The environment and mutations also play a role in determining characteristics and evolutionary changes.

Explanation:

An organism inherits its genetic material from its parents. This genetic material comes in the form of DNA, where genes are the units of inheritance that determine an organism's characteristics. Each parent contributes one set of genes, which are located on chromosomes, thus providing two copies of each gene to their offspring. Variations in these genes, known as alleles, contribute to the diversity among siblings.

The process of inheritance is universal among cellular organisms, ensuring that the offspring will belong to the same species and will exhibit similar characteristics such as size and shape. While genetic inheritance is a major factor, it is important to understand that the environment can also influence characteristics through mechanisms like fetal programming and intergenerational inheritance.

Additionally, genetic variation arises due to mutations during DNA replication and environmental factors such as UV radiation. Over time, these variations can lead to significant evolutionary changes, as those with beneficial alterations are more likely to survive and reproduce, passing their traits to the next generation.

Which cells form the stomata in a plant ? Help please

Answers

Answer:

parenchyma cells

Explanation:

The xylem and the phloem

Incontinetia pigmenti is an x-linked dominant condition. homozygotes and hemizygotes die in utero. in infancy ip causes blistering of parts of the skin, and patchy altered pigmentation later. a woman with ip has a newborn child. what is the chance that newborn will be an unaffected girl?

Answers

Answer:

Option A

Explanation:

Complete Question

Incontinetia pigmenti is an X-linked dominant condition. Homozygotes and hemizygotes die in utero. In infancy IP causes blistering of parts of the skin, and patchy altered pigmentation later. A woman with IP has a newborn child. What is the chance that newborn will be an unaffected girl?

a. 1/4

b. 1/3

c. 1/2

d. 2/3

e. 3/4

f. Impossible to know without more information.

Solution

As we know that an X-linked dominant inheritance is a kind of genetic condition in which X linked mutant is a dominant trait. Thus, even if one copy of X chromosome is present, the offspring would be diseased individual.  

Here , Given

Woman has ip, hence in order to have unaffected girl child she must mate a normal man

Genotype of woman would be XX'

Genotype of man would be YX

XX' * YX

XY, XX, X'Y. X'X

Two daughter and two son will be produce.

Out of the two daughters one is diseased and another one is normal.

Thus, the chance that newborn will be an unaffected girl is

[tex]\frac{1}{4}[/tex]

Thus, option A is correct

 

Which of the following best explains the publics shift to support local farming

Answers

Answer:

The public is upset with corporate farming’s unhealthy and underhanded business practices.

Explanation:

Which autonomic system is most likely to be dominant while someone is experiencing stress about an upcoming job interview?

Answers

Options for the question have not been given. They are as follows:

a) the peripheral nervous system

b) the sympathetic nervous system

c) the somatic nervous system

d) the parasympathetic nervous system

Answer:

b) the sympathetic nervous system

Explanation:

Autonomic nervous system supplies internal organs like heart, stomach, lungs etc. and involuntary muscles. It is further divided into sympathetic and parasympathetic nervous system. Sympathetic nervous system is activated during stressful or threatening situation. It is responsible for fight or flight response. Heart rate and blood pressure is increased, blood flow to stomach and intestine is reduced, pupils are dilated and sweating is increased. Hence during a stressful situation like an upcoming job interview sympathetic nervous system is dominant.  

Answer:

b

Explanation:

Nonvascular plants do not have vascular tissue, while seedless vascular plants do. As a result, seedless vascular plants differ in which ways? Check all that apply.

Seedless vascular plants grow larger than nonvascular plants.
Seedless vascular plants grow smaller than nonvascular plants.
Seedless vascular plants grow closer to water sources than nonvascular plants.
Seedless vascular plants grow farther from water sources than nonvascular plants.
Seedless vascular plants have true roots, stems, and leaves.
Seedless vascular plants do not have true roots, stems, and leaves.

Answers

Vascular plants with no seeds vary from nonvascular plants in a number of ways. First off, since they have specialised tissue called xylem and phloem that aids in moving water and nutrients throughout the whole plant body, seedless vascular plants grow bigger than nonvascular plants.

Second, nonvascular plants lack genuine roots, stems, and leaves, whereas seedless vascular plants have. Finally, since they have more effective water and nutrient delivery systems than nonvascular plants, seedless vascular plants can grow farther from water sources.

Therefore, the correct response to the question is that seedless vascular plants have genuine roots, stems, and leaves, grow bigger than nonvascular plants, and spread out further from water sources than nonvascular plants.

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Answer:

1,4 and 5

Explanation:

Two populations of birds with somewhat different coloration live on opposite sides of a peninsula. The habitatbetween the populations is not suitable for these birds.When birds from the two populations are brought together,they produce young whose appearance is intermediate between the two parents. These offspring will breed with eachother or with birds from either parent population, and all offspring of these pairings appear intermediate to variousdegrees.What keeps the two populations separate?

A.temporal reproductive isolation
B.lack of hybrid viability
C.behavioral reproductive isolation
D.spatial reproductive isolation—the only reason these two species don’tmate is because of the inability of the middle land to be occupied

Answers

Answer:

Option D, spatial reproductive isolation—the only reason these two species don’t mate is because of the inability of the middle land to be occupied

Explanation:

It is clear from the question that the two bird populations with different color are able to mate and reproduce viable and fertile offspring when brought together. Hence, the only problem due to which these two bird population were not breeding with each other was their distant location and habitat.

Location and habitat are characteristic of spatial distribution and hence they were separate because of spatial reproductive isolation

Hence, option D is correct

Final answer:

D. Spatial reproductive isolation keeps two bird populations with different colorations separate due to an unsuitable habitat preventing interaction and breeding, leading to independent evolution and potential reinforcement of isolation.

Explanation:

The reason the two populations of birds with different colorations remain separate is due to spatial reproductive isolation. This form of reproductive isolation occurs when two populations are geographically separated by an unsuitable habitat, preventing them from interacting and breeding. In this scenario, the unsuitable habitat between the bird populations functions as a barrier, keeping them genetically and reproductively independent even though they can produce viable offspring when brought together artificially.

Habitat isolation ensures that each population can evolve independently through natural selection, mutation, and genetic drift. As a result, even if the two populations were to come into contact again, they might be so genetically distinct that interbreeding would no longer be feasible, leading to the reinforcement of isolation.

Despite his young age, Ruben was recently diagnosed with hypertension. He knows that reducing dietary sodium and increasing dietary potassium can both help to lower his blood pressure. Of the following foods, which one contains the most potassium per servinga.Breadb.Bananac.peanutsd.potatoes

Answers

Answer:

Potato

Explanation:

Hypertension is a condition developed due to the continuous high or elevated blood pressure in the arteries in the body. The main cause of hypertension is the contraction of the arteries and the consumption of food with a high level of sodium and low level of potassium.

It is suggested that people with hypertension should consume a diet rich in potassium but with a low amount of sodium.  The good source of food with a high level of potassium is baked potato which provides carbohydrates also, salmon, and the banana.

Since the amount of potassium is high in the baked potato, therefore, is the correct answer.

Final answer:

Potatoes have the highest potassium content per serving among the listed foods and should be included in Ruben's diet to help manage his hypertension. It's also crucial to reduce dietary sodium to improve heart health.

Explanation:

Among the foods listed, potatoes contain the most potassium per serving. Potassium is an essential nutrient that plays a key role in maintaining proper heart function and regulating blood pressure. Ruben can benefit from eating potassium-rich foods, such as bananas, leafy greens, lima beans, and avocados, to help control his hypertension. It's also important to note that reducing dietary sodium intake and choosing foods lower in sodium can contribute to better blood pressure management.

Total recommended dietary potassium intake is 4700 mg/day. To improve the sodium and potassium balance in the diet, it's advised to avoid processed foods high in sodium and increase intake of fresh fruits and vegetables, which are generally high in potassium and other beneficial nutrients.

Which does not indicate a chemical change has occurred:

Change of color
Heat is produced
Smell is produced
Light is produced
Gas is produced
Solid is produced

Answers

Answer:

Light is produced

The energy that flows through most ecosystems comes from the sun. primary producers convert a fraction of the sun's energy into chemical energy, which can be used by consumers. food webs describe how energy flows between trophic levels in an ecosystem, and a trophic pyramid represents the amount of energy available at each trophic level. part a - identifying trophic levels in a food web

Answers

Answer:

Primary producers (autotroph organism), primary consumers (herbivores), secondary consumers (carnivores), decomposers

Explanation:

The trophic web is the process of energy transference through a series of organisms, in which every organism feeds on the preceding one and becomes food for the next one. The first link is an autotroph organism or producer, such as a vegetable, that can synthesize organic matter from inorganic matter. The next links are the consumers: herbivores are primary consumers and feed on producers. Carnivores are secondary consumers and feed on herbivores, and so on. The last links are the decomposers, microorganisms that act on dead animals degrading organic matter.

When one of the links disappears, it affects the superior links as they will not have their food source. The immediately anterior link will be beneficiated, as it will not be eaten by its predator. And finally, as this last link will overgrow, it will consume greater quantities of its food, causing a decrease in its anterior link.

Final answer:

The energy flow in ecosystems starts with the sun and is converted into chemical energy by primary producers. Consumers obtain this energy by consuming the primary producers. Food webs and trophic pyramids describe the flow of energy between trophic levels in an ecosystem.

Explanation:

In most ecosystems, the energy flow starts with the sun. This energy is converted into chemical energy by primary producers through the process of photosynthesis. Consumers, such as herbivores, then obtain this chemical energy by consuming the primary producers.

The energy transfer between trophic levels is described by food webs, which illustrate the feeding relationships in an ecosystem. Trophic pyramids represent the amount of energy available at each trophic level, with energy decreasing as you move up the pyramid.

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What is the advantage of a fungal body being composed of numerous thin hyphae instead of one or two very thick hyphae?

Answers

Answer:

A greater surface area is available for absorption of nutrients.

Sickle-cell anemia is a genetically inherited disease. Homozygous individuals (SS) have normal blood cells that are easily infected with the malarial parasite. Thus, many of these individuals become ill and may die. Individuals homozygous for the sickle-cell trait (ss) have sickled red blood cells that readily collapse when deoxygenated. Although malaria cannot grow in these red blood cells, individuals often die because of the hemoglobin disorder. However, individuals with the heterozygous condition (Ss) have some sickling of red blood cells, but generally not enough to cause death. In addition, the heterozygotes tend to survive better than either of the homozygous conditions as they are resistant to malaria. If 16% of an African population is born with a severe form of sickle-cell anemia (ss), what percentage of the population will be heterozygous (Ss) for sickle-cell and therefore resistant to malaria?

Answers

Final answer:

The percentage of the population that will be heterozygous (Ss) for sickle-cell and therefore resistant to malaria is 84%.

Explanation:

To calculate the percentage of the population that will be heterozygous (Ss) for sickle-cell and therefore resistant to malaria, we need to find the frequency of the ss genotype first. Given that 16% of the population is born with a severe form of sickle-cell anemia (ss), the frequency of the ss genotype is 0.16.

Since we are dealing with a single gene with two alleles, the sum of the frequencies of all possible genotypes should equal 1. So, to find the frequency of the Ss genotype, we can subtract the frequency of the ss genotype from 1.

Frequency of Ss = 1 - Frequency of ss = 1 - 0.16  = 0.84.

Finally, to get the percentage, we can multiply the frequency by 100.

Percentage of the population that will be heterozygous (Ss) = Frequency of Ss x 100 = 0.84 x 100 = 84%.

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Heather and Haley are modeling the movement of a wave using a rope. When Heather gives one end of the rope a quick up and down shake, a wave travels down the rope toward Haley. Look at the picture of the rope model shown below.


Which arrow in the picture shows the amplitude of the wave?
A.
W
B.
X
C.
Y
D.
Z

Answers

Answer:

The answer is y

Explanation:

What is the scientific name of an organism is made up of what two group names

Answers

Prokaryotes and Eukaryotes

What is not a similarity between the male and female reproductive systems?

Answers

the male consists of external organs
the female consists of internal organs

What leads to the degradation of the contents of late endosomes by lysosomal enzymes?

Answers

Answer:

It forms with fragments of the "early endosomes" or migration endosomes, near the Golgi apparatus, it has a more central location within the cell and a slightly more acidic pH than the "early endosome". The latter will allow it to facilitate the function of the hydrolytic enzymes it receives from the Golgi apparatus, thus finally forming the lysosomes, organelles specialized in degradation.

In transport through "transcytosis", the endocited material is transported in endosomes from one end of the cell to the other, being released by the process called exocytosis.

Explanation:

Endosomes are not considered cellular organelles by many authors, but compartments within the cytoplasm that function as transporters of material in animal and fungal cells delimited by a simple clathrin membrane, mediated by a receptor in the extracellular domain at the starting site invagination; but recent literature does classify them as structures with sufficient characteristics to be considered organelles. They are defined as membranous organelles and most of the material they transport is transferred to lysosomes for degradation.

A dorsal and ventral root of each spinal segment unite to form a

Answers

Answer:

A dorsal and ventral root of each spinal segment unite to form a spinal nerve.

Explanation:

Spinal nerves are the mixed nerves emerging from the spinal cord and exiting at the intervertebral foramen.A dorsal and ventral root of each spinal segment unite to form a spinal nerve.

Proximal branches of the spinal nerve includes:

Dorsal (posterior) root is sensory input to spinal cordVentral (anterior) root is motor input of spinal cord.

Distal branches :

Dorsal ramus supplies the dorsal body ,muscle and skin.Ventral ramus to ventral skin and muscles and limbs.Meningeal branch to meninges, vertebrae and ligaments.

Final answer:

The dorsal root (comprising sensory axons) and ventral root (comprising motor fibers) of each spinal segment combine to form a spinal nerve, crucial in communication between the spinal cord and the body.

Explanation:

In biology, particularly in the study of the nervous system, the dorsal and ventral roots of each spinal segment unite to form a spinal nerve. These spinal nerves are instrumental in transmitting sensory and motor information between the spinal cord and the rest of the body. The dorsal root contains sensory axons which enter the spinal cord, while the ventral root contains motor fibers that emerge from it. Together, these two roots form a spinal nerve, which is an integral component of the peripheral nervous system.

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What weather conditions would exist in El Paso based on the weather map seen here?

Answers

Answer:

Dry and hot

Explanation:

Which of the following is most likely to create genetic variation in a population?

a
RNA polymerase errors during transcription
b
Helicase failure to unwind DNA during replication
c
DNA polymerase errors during replication
d
Misincorporation of amnio acids by tRNA during translation

Answers

um maybe C dna polymerase errors during replication

Answer:

D

Explanation:

Genetic variation can be created by random mating, random fertilization, and recombination between homologous chromosomes during meiosis. I think b and c can be ruled out because they are relatively unlikely in themselves. D seems to be most likely due to RNA splicing and other methods that occur to avoid those errors.

Lateral gene transfer involves the movement of genes between members of a species without sexual reproduction. In bacteria, there are three mechanisms for this: Conjugation, transformation, and transduction. Predict how these processes are most likely to affect bacteria

Answers

Answer:

Transformation is a genetic mechanism for which the bacteria incorporate DNA from its cellular medium

Transduction is another genetic mechanism for which DNA is transferred among bacteria by viruses

In conjugation, DNA is transferred between cells, which are named donor and recipient cells

Final answer:

Horizontal gene transfer plays a critical role in bacterial adaptation and evolution, involving mechanisms such as transformation, transduction, and conjugation. These processes contribute to genetic diversity, spread antibiotic resistance, and enable bacteria to adapt to new environments.

Explanation:

Horizontal gene transfer (HGT), also known as lateral gene transfer, has significant implications for bacterial evolution and adaptation. Bacteria can acquire new genes through three primary mechanisms: transformation, transduction, and conjugation. These processes allow bacteria to gain genetic material without sеxual reproduction and can lead to increased genetic diversity, the spread of antibiotic resistance, and the ability to inhabit new ecological niches.

During transformation, bacteria take up nаked DNA from their environment, which often comes from dead bacteria releasing their genetic material. This DNA can be incorporated into the recipient's genome, leading to genetic variation within the population. Transduction occurs when a virus transfers genetic material between bacteria, facilitating the spread of genes between distinct bacterial populations. Lastly, conjugation, the most common form of HGT, involves the direct transfer of DNA from one bacterium to another through a pilus. It can result in the dissemination of genetic traits, such as antibiotic resistance, across diverse bacterial species.

These HGT mechanisms have substantial ecological and medical consequences as they contribute majorly to bacterial adaptability and the emergence of multidrug-resistant strains. Furthermore, such gene transfer events are often more rapid than mutation-driven evolution, prompting rapid bacterial response to environmental changes such as the introduction of new antibiotics.

Chantel dropped a tiny spot of ketchup on her pants during lunch. Even though her teacher was able to completely remove the spot, Evelyn is crying hysterically and says that she wants to go home because her outfit is ruined. Her behavior demonstrates the characteristic of preoperational thought known as ____________.
A. Irreversibility
B. Animism
C. Egocentrism
D. Conservation

Answers

Answer:

A. Irreversibility

Explanation:

Based on the scenario being described it can be said that her behavior demonstrates the characteristic known as irreversibility. This refers to a stage in early child development in which the child believes that certain actions/events cannot be reversed or undone, such as spilling ketchup on her dress. Chantel believes that the dress cannot be fixed and is why she begins to cry uncontrollably.

The Punnett square shows the possible genotype combinations for the offspring of two parents.
What are the genotypes of the parents?
A Gg and Gg
B GG and GG
C gg and gg
D Gg and gg

Answers

Answer:

A or just Gg and Gg

Explanation:

I'm taking the test

The Punnett square shows the possible genotype combinations for the offspring of two parents, and the genotypes of the parents are Gg and Gg, which are in option A, and due to this, there are three types of offspring present.

What is the relationship between the parents and offspring?

Parents and offspring are very closely related as the parents produce gametes that are united to form the zygote, and that zygote develops into the offspring, the child, or the plant, and here are four offspring that are present. Out of four offspring, one is GG, two are Gg, and one is gg, and this is only possible when the heterozygous parents are present.

Hence, the Punnett square shows the possible genotype combinations for the offspring of two parents, and the genotypes of the parents are Gg and Gg, which are in option A, and due to this, there are three types of offspring present.

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Our ability to oxygenate the tissues and organs of our bodies depends on our ability to ventilate, or exchange gases in our respiratory system. The resultant distribution of ventilation in our respiratory system depends on what factors?

Answers

Answer:

GravityBody position

Explanation:

Ventilation is defined as the exchange of air between atmosphere and the lungs so that the carbon dioxide in the alveoli (the small gas sacs in the lungs) can be exchanged.

Factors affecting distribution of air in respiratory system while ventilation are as following:

Gravity: Total blood flow and alveolar ventilation in the dependent lung is lower than in the non-dependent lung in the left lateral location, since the drop in lung volume outweighs any gravity-dependent ventilation and perfusion increases.Body position: Changing position is necessary to break through the daily monotonic delivery of mechanical ventilation and favour the clearance of respiratory secretions and results in the improvement of lung volume and oxygenation.

What is common between the environmental changes of ice ages and global warming?

Answers

Answer:

this may help!

Explanation:

The global climate is the connected system of sun, earth and oceans, wind, rain and snow, forests, deserts and savannas, and everything people do, too. The climate of a place, say New York, can be described as its rainfall, changing temperatures during the year and so on.

Answer:

It turns out that our warmth is the result of ocean currents that bring warm surface water up from the equator into northern regions that would otherwise be so cold that even in summer they'd be covered with ice.

Explanation:

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The maximum current output of a 60 circuit is 11 A. What is the rms voltage of the circuit? In an experiment of a simple pendulum, measurements show that the pendulum has length 0.397 0.006 m, mass M-0.3172 0.0002 kg, and period Tem-1.274 0.005 s. Take g = 9.8 m/s of error (use the error propagation method you learned in Lab 1). and the predicted value Ttheo- i. Use the measured length L to predict the theoretical pendulum period Ttheo with a range ii. Compute the percentage difference (as defined in Lab 1) between the measured value Texp How many joules are required to raise the temperature of a 6.50 g sample of silver from 34c to 189C? 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If both r and l are doubled, the resistance of the wire does what?a)decreasesb)increases c)remains the same Which of the following statements are true about the angles in the figure? Select all that apply.X and Z are vertical angles.X and Y are a linear pair.W and Z are supplementary.Y and Z are supplementary.W and X are adjacent. 1. ____________ refers to the nonliving parts of an ecosystem. Biotic Abiotic 2. ___________ refers to the living parts of an ecosystem. Biotic Abiotic 3. Parasitic diseases and predator/prey relationships are all examples of __________ factors in an ecosystem. biotic abiotic WILL REWARD THE BRAINLIEST 9-18Use what you have learned about triangles and angles to write an equation that represents each situation. Then find each of the missing angles in the triangles below.9-19.Additional Challenge: Use what you know about triangles and angle relationships to find the missing angles in the triangles below. Hector has a favorite Mexican fast food restaurant he likes to go to for chicken burritos. He will drive ten miles to the location nearest his work to get a chicken burrito for lunch. For three years Hector has begged the owner of the fast food restaurant to open one in the shopping center near his employment so he and his fellow-workers can enjoy the delightful aroma, titillating taste, and spicy goodness of their chicken burritos. What utility is Hector seeking? Margie, age 65, describes her 40-year marriage to Jim: "For the first few years, it was wonderful. We were so in love. Then during the next decades things became rockier, but after the kids left the house we really fell in love again." Margie and Jim's marriage is:A. fairly typical.B. fairly unusual.C. destined to get much worse when Margie and/or her husband become ill.D. destined to fall apart in the old-old years. Some airlines have restrictions on the size of items of luggage that passengers are allowed to take with them. Suppose that one has a rule that the sum of the length, width and height of any piece of luggage must be less than or equal to 222 cm. A passenger wants to take a box of the maximum allowable volume. If the length and width are to be equal, what should the dimensions be? How do trade agreements of international organizations attect trade?by encouraging the development of trade The primary immune response ________. a. has a lag period while B cells proliferate and differentiate into plasma cells b. occurs when memory cells are stimulated c. occurs more rapidly and is stronger than the secondary response d. is another name for immunological memory whom did the allies plan to prosecute after world war II ended Which description BEST applies to today's U.S. worker? Question 1 options: a) working more at the office, leaving home for fun b) feeling more bored, and less interested in working hard c) working harder and longer, feeling more insecure d) slacking off more at work, enjoying leisure more Which of the following is the linear parent function?A. F(x) = xB. F(x) = x + 1C. F(x) = 1/xD. F(x) = x^2 PLS HELP ILL MARK YOU BRAINLLIEST!!!!! Write down the first four terms of the sequence whose nth term is: 4n-2 What is top down design? a. Top down design is a way of designing your program by starting with the biggest problem and breaking it down into smaller and smaller pieces that are easier to solve. b. Top down design is a way that you can create designs on a computer to put on a web page c. Top down design is a way of designing your programs starting with the individual commands first d. Top down design is a way to use loops and classes to decompose the problem can you guys please help me with this its due tonight! please help me out. (30 points).