Answer:
personality on edg
Explanation:
Answer:
D. Personality
Explanation:
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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.
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:
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
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.
The electrical impulse that stimulates neurotransmitter release, thereby transmitting information to other neurons, arise in the:
a. dendrites
b.axon hillock
c. axon
d. dendritic spine
Answer: b. axon hillock.
Explanation:
Neurotransmitter are the chemical substance which acts as a signal for neurotransmission. At a region called the axon hillock the axon emerges from the soma. At axon hillock, nerve impulses are produced by the plasma membrane; the axon pushes these impulses away from the soma, or dendrites towards other neurons.
All the synaptic inputs are summed up at the axon hillock which further stimulates neurotransmitter release. Axon hillock is called as the trigger zone.
Hence, the correct option is b. axon hillock.
Which of the following best explains the publics shift to support local farming
Answer:
The public is upset with corporate farming’s unhealthy and underhanded business practices.
Explanation:
What is the advantage of a fungal body being composed of numerous thin hyphae instead of one or two very thick hyphae?
Answer:
A greater surface area is available for absorption of nutrients.
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?
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
A portal system Multiple Choice includes a functional end artery that makes an arterial anastomosis. is one in which circulation to a large organ involves only one artery and one main (portal) vein. is one in which multiple arteries converge on one organ or body region. is a simple circulatory system with an areriovenous anastomosis. is one in which blood flows through two capillary beds before being sent back to the heart.
Answer:
is one in which blood flows through two capillary beds before being sent back to the heart.
Explanation:
A portal system can be defined as a system of blood vessels having a capillary network at each end, meaning that the blood vessel starts and ends in capillaries, before finding its way back to the heart. The blood draining through the capillary bed flows via the larger vessel to supply the blood to the another structure's capillary bed.
the genotype of an offspring defines the physical characteristics or ___
Answer:
Phenotype
Explanation:
I just took the test
Answer:
✨Phenotype ✨
Explanation:
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Different organs have different energy and metabolic fuel requirements. Match the organs listed below with the fuel sources each is able to utilize. Although fuel sources can change depending on the metabolic stage of the organism (e.g., starving vs. well-fed), here consider all potential fuel sources for each organ.A) Brain: B) Heart: C) Liver:
Answer:
Explanation:
brain-
Glucose is the major fuel for the brain metabolism to supply energy for synaptic transmissions. Average of -120g/day.However during hypoglacemia, keto bodies can be used by the brain for energy supply.
the fuel stores of the brain is very low because of high biochemical activities of the brain which need to be supplied with contant fuel.Although it stores little Glycogen, most fuel supply to the brain is from the circulating glucose in the blood.
Heart.
the high energy consuming activities of the heart ensured that molecules with abundant energy supply e.g fatty acids from lipids digestion is preferred. Keto bodies, acetoacetate and lactate can also be fuel . Glucose is last on the scale of preference for the heart as fuel.
It does not reserve or export any fuel.
Liver.
the complex metabolic and multi functional activities of the liver required constant supply of energy in all available forms. Thus glucose, Amino acids and fatty acids are sources of fuel for the liver.
The liver fuel reserve is in the form of glycogen which is stimulated by glucagon to convert to glucose during condition of hypoglycemia. Triacylglycerols is another fuel reserve.
Generally as products of metabolic activities in the liver, fatty acid from lipid metabolisms, Glucose from gluconeogenesis, and glycogensis, and ketone bodies are the export sources.
A gene for corn has two alleles, one for yellow kernels and one for white kernels. Cross pollination of yellow corn and white corn results in ears of corn that have an approximately even mix of yellow and white kernels. Which term best describes the relationship between the two alleles?
A. Genetic recombination
B. Codominance
C. Incomplete dominance
D. Chimerism
Answer:
B. Codominance
Explanation:
Which autonomic system is most likely to be dominant while someone is experiencing stress about an upcoming job interview?
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:
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
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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Describe how the structure of a prokaryotic chromosome differs from the structure of a eukaryotic chromosome.
Explanation:
The structure of prokaryotic chromosome differs from the structure of eukaryotic chromosome by following ways:
A prokaryotic chromosome is shorter than the eukaryotic chromosome.In prokaryotes, the circular chromosome is held in the cytoplasm in a region called nucleoid whereas in eukaryotes chromosomes are stored within a structure called the nucleus.Prokaryotic chromosome comprises only a single origin of replication whereas the eukaryotic chromosome carries multiple origins of replication.Prokaryotic chromosome consists of covalently closed (loop) circular DNA whereas the eukaryotic chromosome consists of linear DNA not circular.Prokaryotic chromosomes are circular and free in the cell cytoplasm, usually consisting of a singular chromosome. Alternatively, eukaryotic chromosomes are linear, located in the cell nucleus, and are organized into chromatin by proteins called histones.
Explanation:The main difference between prokaryotic and eukaryotic chromosomes lies in their structure and location within the cell. Prokaryotic chromosomes are circular and found free in the cell cytoplasm, they are not enclosed by a nuclear membrane and usually consist of a singular chromosome. On the other hand, eukaryotic chromosomes are located within the cell's nucleus, and are linear in structure. These cells contain more than one chromosome, which are organized and packaged in proteins called histones forming a structure called chromatin.
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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
Answer:
Light is produced
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
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
Handedness:a.reflects the greater capacity of one side of the brain to carry out skilled motor action. b.is evident in a wide range of skills from birth. c.is a heritable trait, especially for left-handed people. d.is strongest for simple, rather than complex, skills.
Answer: a.
Explanation:
The proficiency to be more professional and confident using one hand instead of the other for activities such as writing and throwing a pitch is called handedness.
Handedness begins to develop before birth. Handedness is inheritable and evident from early childhood. handedness is related to variations between the brain's right and left halves (hemispheres). The the left hemisphere regulates the action of right side of the body while right hemisphere controls movement on the left side of the body.
So in handedness, one half of the brain regulates more skilled motor action.
Hence, teh correct option is a.
What leads to the degradation of the contents of late endosomes by lysosomal enzymes?
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.
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.
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 twoFinal 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.
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
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.
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
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.
What is phosphorus ?
Answer:
A chemical element with the symbol P and atomic number 15.
Explanation:
Phosphorus is a chemical element with the symbol P and atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth.
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____.
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.
Which best describes how the common cold spreads in the human body
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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Which cells form the stomata in a plant ? Help please
Answer:
parenchyma cells
Explanation:
Why do you think that concerns about the environment did not emerge in marine science until the late twentieth century?
Answer:
One possible reason why concerns about the environment did not emerge in marine science until the late twentieth century is that the study of marine science was initially focused on understanding the ocean's physical and biological processes, rather than its environmental impact. Another reason could be that the environmental issues and concerns related to the ocean were not as visible or apparent as they are today, and it was only after the negative effects of human activities on the ocean became more evident that marine scientists began to focus on environmental issues.
Explanation:
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
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.
Replication of the lagging strand of dna is accomplished by repeatedly making __________ followed by 1
Answer:
The correct answer is "short RNA primers; Okazaki fragments".
Explanation:
The missing information of this question is as follows:
"Replication of the lagging strand of dna is accomplished by repeatedly making __________ followed by 1,000-2,000 nucleotide segments called __________"
The correct answer is "short RNA primers; Okazaki fragments".
DNA replication always occurs from 5' to the 3' end, in what is known as the directionality or the end-to-end chemical orientation in molecular biology. This fact makes difficult the synthesis of the lagging strand of DNA. In order to achieve this short RNA primers are bound to segments of DNA (serving as the 5' end available for the DNA polymerase to synthesize), which leads to the discontinuous synthesis of Okazaki fragments that are later linked together by the enzyme DNA ligase.
A subpopulation of plant, isolated from the main population, is found to obey the function below, describing the number of individuals (in thousands). N( ) = 8e4 ???? 2 + 5 7 + 2e4 What is the ultimate fate of this subpopulation of plants? Justify your claim with the appropriate mathematics.
Here is the correct format of the equation in the question.
A subpopulation of plant, isolated from the main population, is found to obey the function below, describing the number of individuals (in thousands).
[tex]N_{(T)} = \frac{8e^{4T}-2T+5}{7+2e^{4T}}[/tex]
What is the ultimate fate of this subpopulation of plants? Justify your claim with the appropriate mathematics.
Answer:
the ultimate fate of this subpopulation of plants = 4
Explanation:
Given that:
[tex]N_{(T)} = \frac{8e^{4T}-2T+5}{7+2e^{4T}}[/tex]
Taking the limit of N(T) ; we have ,[tex]\lim_{T \to \infty} N(T)[/tex]
[tex]N(T) = \frac{8-\frac{2T}{e^{4T}}+\frac{5}{e^{4T}}}{2+ \frac{7}{e^{4t}}}[/tex]
where T is less than [tex]e^{4T}[/tex] ; which is written as :
[tex]T< e^{4T}[/tex]
∴ [tex]\lim_{T \to \infty} N(T )= \frac{8-2 \lim_{T \to \infty} \frac{T}{e^{4T}} +5 \lim_{T \to \infty} \frac{1}{e^{4T}} }{2+7 \lim_{T \to \infty} \frac{1}{e^{4t}} }[/tex]
= [tex]\frac{8}{2}[ \lim_{T \to \infty} \frac{T}{e^{4T}} =0 ; \lim_{T \to \infty} \frac{1}{e^{4t}} }=0][/tex]
where; [tex][ \lim_{T \to \infty} \frac{T}{e^{4T}} =0 \ \ \ and \ \ \lim_{T \to \infty} \frac{1}{e^{4t}} } = 0][/tex]
Then, [tex]= \frac{8}{2}[/tex]
= 4
Thus, the ultimate fate of this subpopulation of plants = 4
What is not a similarity between the male and female reproductive systems?
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
Answer:
The answer is y
Explanation: