PLEASE HELP ME IM GOING TO FAIL THIS TEST PLEASEE!!! :(
1. What is the name of the trait that is expressed in all of the new seeds or offsprings?
2. What is the name of the trait that is hidden by the dominant trait?
3. What is the name of the factor that represents the different variations of a gene?
4. When both alleles are identical, the gene is called what?
5. When both alleles are different, the gene is called what?
6. What can be used to figure out how alleles are distributed among descendants?
a. genotype
b. phenotype
c. Punnett square
d. heterozygous
7. What is the name of the scientist who started the study of heredity?
Final answer:
The expressed trait is the dominant trait, while the hidden one is recessive. Alleles are the variations of a gene, with homozygous meaning identical alleles and heterozygous meaning different alleles. Gregor Mendel is considered the father of heredity studies.
Explanation:
The trait that is expressed in all the new seeds or offspring is called the dominant trait. The trait that is hidden by the dominant trait is known as the recessive trait. A factor that represents the different variations of a gene is called an allele. When both alleles are identical, the gene is called homozygous. When both alleles are different, the gene is called heterozygous. A Punnett square can be used to figure out how alleles are distributed among descendants. The scientist who started the study of heredity is Gregor Mendel.
How does multicellular organisms grow?
Answer: They grow by increasing the number of cells they have. This relies on the processes of cell division and differentiation.
How does the radiation energy reach Earth?
The 10% rule in the food chain means
The image does not show orders of insects. Suggest three categories of insects that would likely be grouped into orders. Hint: think about what kind of insects there are. Add your three categories to the image.
Answer:
I) Beetle which belongs to the Order Coleoptera.
2) Cockroach which belongs to the Order Dictyoptera.
3) True Fly which belongs to the Order Diptera.
Explanation:
In the image, there is only one insect i. e. house fly which belongs to kingdom animalia, phylum arthropoda, class insecta and order diptera. Two insects can be added to the image which are cockroach and Beetle which belongs to Order Dictyoptera and Order Coleoptera, respectively. All of these three insects belongs to phylum arthropoda due to jointed appendages but their order is different from one another due some differences in their body structure.
Beetles, butterflies, and ants are examples of insect categories that can be grouped into orders based on their distinguishing features and developmental processes. They demonstrate the diversity found within the Hexapoda subphylum. The classification of these insects follows the hierarchy of the Linnaean system.
Explanation:Three categories of insects that could be grouped into orders may be, for example, beetles, butterflies, and ants. These are all members of the subphylum Hexapoda. Beetles are part of the order Coleoptera, characterized by their hardened forewings. Butterflies belong to the order Lepidoptera, distinguished by their scale-covered wings. Ants are part of the order Hymenoptera, recognized by their defined waist and elbowed antennae.
These insects demonstrate the diversity in the Hexapoda subphylum, with varied developmental processes, wing morphology, and societal structures. For instance, ants, beetles, and butterflies undergo complete metamorphosis from larval stages, whereas other insects like grasshoppers undergo an incomplete metamorphosis process.
The taxonomic classification of these insects follows the hierarchy of domain, kingdom, phylum, class, order, family, genus, and species, based on the Linnaean system. Organisms are grouped based on common characteristics and evolutionary history.
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An incomplete concept map of carrying capacity is provided.
Which of the following factors would most
accurately be placed in the same side of the concept map as “Increase in population of competitors”?
Group of answer choices:
1. Increase in reproductive success
2. A decrease in available living space
3. Increase in availability of freshwater
4. A decrease in population of predators
For the incomplete concept map of carrying capacity, 'A decrease in available living space' would be correctly placed alongside 'Increase in population of competitors'. As competitors increase, available space decreases, reflecting the concept of carrying capacity.
Explanation:In the context of an incomplete concept map of carrying capacity, the choice that would most accurately be placed in the same side as 'Increase in population of competitors' would be 'A decrease in available living space'. The reason being, when the number of competitors for resources in a given area or ecosystem increases, the available space for each individual decreases. This concept, known as carrying capacity, is a central idea in population ecology. It refers to the maximum population size that a particular environment can sustain indefinitely.
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Which is the second smallest level of organization?
Answer: Tissues!!!
Explanation:
Answer: tissues
Explanation:
Which action is one of the main functions of the circulatory system?
Answer:
the main action of the circulatory system is to provide blood to whole body
Answer: delivering substances to the cells of the body
Which job must enzymes do before replication can begin?
Answer:
Before they replicate the two DNA strands need to separate from each other.
Explanation:
Question 13 (2 points)
The process of cellular differentiation is a direct result of
a. differential gene expression.
b. morphogenesis.
c. cell division.
d. apoptosis.
e. differences in cellular genomes.
Answer:
a differential gene expression.
What the human process to make sense of things
What is the relative size and composition of the universe, a galaxy, and a solar system? (and please, don't copy and paste)
Answer:
Socratic app
Explanation:
it will help you
At the end of anaphase II, how many chromatids are on each side of the cell?
Anaphase II is defined as the stage in which sister chromatids separate and move towards the opposite pole of the cells. It is the second last stage of cell division, which occurs before the telophase.
The features of the anaphase II are:
1. Anaphase II is characterized by the separation of sister chromatids and the movement of each chromatid towards the opposite poles.
2. Anaphase II is the second last stage of meiotic division.
3. The sister chromatids are pulled away by the kinetochores attached to the microtubules.
4. At the end of anaphase II, each cell has 46 chromatid.
Therefore, at the end of anaphase II, each daughter cell has 46 chromosomes dragged at one end, whereas the other 46 are dragged to the opposite ends.
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At the end of anaphase II in meiosis, each side of the cell typically contains one chromatid, ensuring equal distribution of genetic material to the resulting daughter cells.
At the end of anaphase II in meiosis, the sister chromatids, which were initially present in each chromosome during metaphase II, separate and move towards opposite poles of the cell.
As a result, each side of the cell receives an equal number of individual chromatids, rather than chromatid pairs. Therefore, at the end of anaphase II, there is typically one chromatid on each side of the cell, as the chromatids have undergone separation from their sister chromatids.
This process ensures that each resulting daughter cell receives the correct number of chromosomes, half of the original diploid number, allowing for genetic diversity and the formation of haploid gametes during meiosis.
How does fertilizer usage, soil degradation, and deforestation all tie in together?
Answer:
Fertilizer usage is linked to the agricultural practice with an aim to enhance the crop yield. Inadequae use of fertilizers however causes soil degradation because these practices overlook the spatial differences in soil fertility status in agricultrual systems. Specifically, not all soils require fertilizer application at the same levels. A recommended approach is that, initially, there should be a proper study of limited nutrients in the soil and thereon only those nutrients should be given at controlled concentrations, which are limited. A major reason is that high concentration of specific nutrients would affect the bioavailability of other nutrients in the long run and could also lead to soil degradation (by affecting soil health status). The microbial population in the soil could also change that are typical for essential biogeochemical cycles. This is a very critical aspect in future future agriculture and to preserve the environment. Deforestation is a condition when the plants are cut excessively for agricultural purposes. If soil degradation continues as discussed above, it would put a reduce the overall proportion of agricultrual land and cutting of naturally grown forests would be required. This would turn the green zones into agricultural zones (in future). This is a pressure on ecosystem and the consequences can be really harsh.
Answer the following questions
At the Hardy Weinberg equation. For each question
assume that just two alleles of a gene exist in the population. A1 codes for purple leaves, has A frequency of 0.7 and is dominant. A2, codes for white leaves, and has a frequency of 0.3.
14. a) If p is the frequency of A1 and q is the frequency of A2, what equation describes the
relationship between p and q? Explain your answer. (2 points)
b) Describe the frequencies of alleles A1, and A2 in the population using both decimals and
percents. (1 point)
Answer:
a) The equation describes the relationship between p and q is p + q = 1 for allelic frequencies
b) The frequencies of alleles A1 in decimals is 0.7 and in percents is 70%.
The frequencies of alleles A2 in decimals is 0.3 and in percents is 30%.
Explanation:
According to Hardy-Weinberg, the allelic frequencies in a locus are represented as p and q, referring to the allelic dominant or recessive forms. The genotypic frequencies after one generation are p² (Homozygous dominant), 2pq (Heterozygous), q² (Homozygous recessive). Populations in H-W equilibrium will get the same allelic frequencies generation after generation. The sum of these allelic frequencies equals 1, this is p + q = 1.
In the same way, the sum of genotypic frequencies equals 1, this is
p2 + 2pq + q2 = 1
Being
p the dominant allelic frequency, q the recessive allelic frequency, p²the homozygous dominant genotypic frequency q² the homozygous recessive genotypic frequency2pq the heterozygous genotypic frequencyIn the exposed example,
A1 codes for purple leaves, has a frequency of 0.7 and is dominant. A2 codes for white leaves, has a frequency of 0.3 and is recessive.According to this equation: p + q = 1.
0.7 + 0.3 = 1
A1A1= p²= 0.7² = 0.49
A2A2= q² = 0.3² = 0.09
A1A2 = 2pq = 2 x 0.7 x 0.3 = 0.42
According to this equation: p² + 2pq + q² = 1
0.49 + 0.42 + 0.09 = 1
The frequencies of alleles A1 in decimals is 0.7 and in percents is 70%. The frequencies of alleles A2 in decimals is 0.3 and in percents is 30%.The frequencies of the A1 and A2 alleles in the Hardy-Weinberg equilibrium is described by the equation p + q = 1, with p being the frequency of A1 (0.7 or 70%) and q being the frequency of A2 (0.3 or 30%).
Explanation:The relationship between p (the frequency of A1) and q (the frequency of A2) in the Hardy-Weinberg equilibrium can be described by the equation p + q = 1. This equation states that the sum of the frequencies of all alleles for a particular gene in a population is equal to 1. In other words, it accounts for 100% of the alleles in the population.
By using the provided frequencies, you can see that this equation holds true as 0.7 (the frequency of A1) + 0.3 (the frequency of A2) equals 1, or 100%. Therefore, the frequencies of alleles A1 and A2 in the population are 0.7 and 0.3 as decimals, and 70% and 30% as percents, respectively.
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NEED HELP FAST. I know it’s seems easy, I’m just not sure what the answer is
The universe contains..
A) few black holes
B) billions of galaxies
C) millions of stars
D) few wavelengths
Answer:
B
Explanation:
All of the following types of information can be learned from the fossil record EXCEPT–
the anatomy of various species.
the common ancestry of organisms.
the future evolution of major groups.
the geographical range of populations.
The fossil record provides extensive information about past life, including species' anatomy, common ancestries, and geographical ranges, but it cannot predict the future evolution of major groups.
Explanation:The fossil record is a rich source of information about the past, providing insights into the anatomy of various species, the common ancestry of organisms, and the geographical range of populations. However, one thing the fossil record cannot offer is predictions about the future evolution of major groups.
This is because the fossil record documents life's history on Earth, showing the progression and changes in species over millions of years, but it doesn't project into the future.
For instance, detailed records showcase the evolution of humans and horses, and comparisons like the similar morphology of whale flippers to bird and mammal appendages support the theory of common ancestry.
Final answer:
The fossil record informs us about past anatomies, b) common ancestries, and d) population ranges, but it does not predict future evolution of major groups.
Explanation:
The fossil record provides a wealth of information about the past, including the anatomy of extinct species, the b) common ancestry of organisms, and d) the geographical range of populations. However, what it cannot project is the future evolution of major groups, as evolution is an ongoing process influenced by numerous unpredictable factors. Fossils do show a progression of evolution over time, revealing changes in anatomy and suggesting evolutionary connections among species, such as the similar morphology of whale flippers and appendages of birds and mammals, which implies a common ancestor.
Which of these is a possible disadvantage of using wind as a source of energy?
A. Wind energy is sustainable.
B. Wind turbines can be placed on existing farms.
C. Wind turbines take up a lot of psace.
D. Wind energy creates new jobs.
Answer:
C. Wind turbines take up lots of space.
Explanation:
Considering none of the other options would be a disadvantage, C has to be the answer
The possible disadvantage of wind energy among the options provided is that wind turbines can take up a lot of space, especially in open lands required for wind farms.
The student asked which of these is a possible disadvantage of using wind energy. Among the provided options, C. Wind turbines take up a lot of space is a possible disadvantage. Even though wind turbines have a small physical footprint relative to the amount of electricity they produce, the major drawbacks include the need for a lot of open land and a fairly constant wind supply. Moreover, in denser population areas or regions with natural beauty, their presence may be regarded as an aesthetic concern to some, affecting landscapes and possibly impacting wildlife.
What happens to Earth when it is farthest from the sun?
A) It moves fastest,
B) It stops rotating,
C) It moves slowest.
D) It stops revolving
Answer:
C.
Explanation:
because if it is farther from the sun so it will move in a bigger circle therefor it moves the slowest.
Final answer:
At its farthest point from the sun, known as aphelion, the Earth moves at its slowest speed within its elliptical orbit, following Kepler's laws of planetary motion.
Explanation:
When the Earth is farthest from the sun, which is a position known as aphelion, it moves at its slowest pace in its orbit. This contrasts with when Earth is closest to the sun, or perihelion, where it moves fastest due to the stronger gravitational pull from the sun at a closer distance. This variation in speed is due to Kepler's laws of planetary motion, which state that a planet's orbital speed changes, being fastest at the closest approach to the sun and slowest at the farthest point. Therefore, the correct answer to what happens to Earth when it is farthest from the sun is C) It moves slowest.
Which of these practices is most likely to reduce the amount of water a farm
uses?
Answer: drip irrigation
Explanation: a p e x
Answer:
Drip irrigation
Explanation:
Of the four choices, it is the most efficient in water saving
A resource is being used by a population.
Which graph represents a sustainable yield of that resource?
Graph A
Graph B
Graph C
Graph D
Answer:
Graph B.
Explanation:
the graph shows amount of resource and time. over time, graph B stays about the same, that is sustainable.
Hope this helps!! :)
The graph that shows sustainable resource usage is the graph B, as that is present in the second option as the resource usage and the time constant, so that is considered sustainable resource usage.
What is the sustainable yield of a resource?The sustainable yield of a resource used by organisms refers to the maximum amount of that resource that can be harvested or consumed by those organisms without depleting the resource's ability to renew itself. In other words, it is the rate at which the resource can be harvested or consumed over an indefinite period without causing long-term damage to the ecosystem or population.
Hence, the graph that shows sustainable resource usage is the graph B, as that is present in the second option as the resource usage and the time constant, so that is considered sustainable resource usage.
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Give three examples of competition between species for ABIOTIC resources, in which the better adapted species is most likely to survive.
Final answer:
Competition for abiotic resources like water, sunlight, and space among different species results in the better-adapted species surviving, while the less adapted may adapt, move, or face extinction as per the competitive exclusion principle.
Explanation:
Competition between species for abiotic resources is a significant aspect of ecological interaction that can strongly influence survival and biodiversity. Here are three examples that illustrate interspecific competition for abiotic resources:
In a forest, tree species might compete for sunlight, another vital abiotic resource. Trees with leaves that have a higher photosynthetic efficiency or that can grow taller to reach the light are more likely to thrive, outcompeting those that cannot reach the light effectively.
Along a rocky shore, different types of algae and barnacles may compete for space, which is essential for their survival. The species that can better attach to the rocks and resist waves will monopolize space and outcompete others.
The competitive exclusion principle explains that in a stable environment, species less adapted will adapt, move, or die out, leading to consequences such as reduced population growth or extinction for the less adapted species. Conversely, character displacement allows coexistence through the development of different specializations.
Help me please!!
A student builds a model of the heart and brain, shown in the diagram. Two trucks, 1 and 2, travel between the organs. The student will label the trucks with what they are carrying.
Which set of labels BEST completes the model?
A) Truck 1 carries oxygen and Truck 2 carries carbon dioxide.
B) Truck 1 carries carbon dioxide and Truck 2 carries oxygen.
Eliminate
C) Truck 1 carries red blood cells and Truck 2 carries white blood cells.
D) Truck 1 carries white blood cells and Truck 2 carries red blood cells
Answer:
A
Explanation:
Oxygen goes into your lungs, carbon dioxide goes out.
I think this is the answer to your question.
Answer:
a
Explanation:
Here are a list of events that involve changes to genotype and phenotype. Arrange these events in sequential order, from first to last.
The altered gene is transcribed into mRNA.
The sequence of nucleotides changes in a gene.
The sequence of amino acids is altered in a protein.
The function of the protein is altered, affecting phenotype.
Answer:
The sequence of nucleotides changes in a gene.
The altered gene is transcribed into mRNA.
The sequence of amino acids is altered in a protein.
The function of the protein is altered, affecting phenotype.
Explanation:
To see a change in a phenotype, the negative change (mutation) should occur in the gene first. Neutral mutations would not lead to a change in phenotype because it doesn't change the type of amino acid essentially. This means that, the first step would be the change in the gene itself. Then, the gene would be translated to mRNA. Then, the mRNA will instruct ribosomes to make an altered protein. Finally, the expression of protein due to different amino acid would lead to a different phenotype.
The answer.................
Answer:
C
Explanation:
this shows that these two organ systems are interacting to maintain a healthy body.
Red dotted line shows a normal distribution
Blue line shows the distribution after a selection has occurred
the size of the male salmon anatomy used to be around medium sized, however, since the small males have snuck into the territory and interbred with the females, the distribution of salmon sizes has expanded to small, medium, and large sizes. This is different than the initial weight span because before the small salmon snuck in, the span of weight for the male salmon wouldn't really go into the small or large category, they would stay mostly at medium.
What must be true for Hardy-Weinberg equilibrium to occur?
A. Some alleles must give an advantage.
B. Mating must happen randomly.
C. Mutations must occur in each generation.
D. The population must be small.
Answer:
B. Mating must happening randomly
Explanation:
hope this helps! :)
Matting must happen randomly in the population for Hardy- Weinberg equilibrium to occur. Therefore, option "B" is correct.
What is Hardy- Weinberg equilibrium?
Hardy- Weinberg equilibrium states that when in a random matting large population, genotype and the allele frequencies remain constant as evolutionary changes are absent. Influences of other factors are inclusive such as genetic drift, mate selection, bottleneck effect, and founder’s effect.
[tex]p2 + q2 = p2 +q2+2pq[/tex] is known as the Hardy- Weinberg equilibrium equation.
The assumption of the Hardy- Weinberg equilibrium is matting should be sexual only, random matting, and organisms should be diploid.
For the application of the Hardy- Weinberg equilibrium, random matting should stake place.
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How many daughter cells result from a parent cell in meiosis?
Answer:4 haploid daughter cells
Explanation:
Meiosis is a type of cell division that reduces the number of chromosomes in the parent cell by half and produces four gamete cells. This process is required to produce egg and sperm cells for sexual reproduction. During reproduction, when the sperm and egg unite to form a single cell, the number of chromosomes is restored in the offspring.
Meiosis begins with a parent cell that is diploid, meaning it has two copies of each chromosome. The parent cell undergoes one round of DNA replication followed by two separate cycles of nuclear division. The process results in four daughter cells that are haploid, which means they contain half the number of chromosomes of the diploid parent cell.
Which body system works together with the integumentary system to protect the body from pathogens?
Answer: immune system
Explanation: It acts as a physical barrier to disease-causing germs and houses immune cells .
Which of the following processes returns carbon to the atmosphere?
Answer:
Respiration is a process in which carbon is released in the atmosphere in the form of carbondioxide.
Explanation:
Respiration is energy generating process. In this process, food substance which contains glucose molecule is broken down in the mitochondria of the cell which releases carbondioxide, water and energy in the form of Adenine tri phosphate (ATP). Energy is used by the cell in different processes and activities while Carbondioxode gas is released in the atmosphere.