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Snowcat [4.5K]
3 years ago
12

Why do plants go dormant in the fall and

Biology
1 answer:
sergeinik [125]3 years ago
5 0
A. There isn’t enough energy given off for them to capture, so they try to conserve it
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Consider two children with the same two parents. Would you expect them to have the same sets of chromosomes? Explain why or why
a_sh-v [17]

Answer:

It is likely that they will have a 50/50 split pair of the chromosomes

Explanation:

5 0
3 years ago
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Why do offspring usually appear similar to their parents?
antiseptic1488 [7]
Each parent gives half of their genetic material to the offspring, which results in an unique combination of both parents, so they appear similar to the parents, sometimes looking similar to a generation before the parents.
8 0
3 years ago
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a star's brightness if it were a standard distance from earth is its apparent brightness true or false
stepladder [879]

This is false. Absolute brightness is the term used to describe how bright a star would look if it were a standard distance from Earth. Apparent brightness is how bright it would look as far as it currently is from Earth. Hope this was helpful!

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3 years ago
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What is the microscopic anatomical make-up of visceral muscles?
fiasKO [112]

Answer:

At the microscopic level of a visceral muscle cell are actin and myosin filaments. They slide past each other in an antiparallel manner to shorten the distances between their ends.  In a smooth muscle cell, the ends of chains of these functional units are attached to the cell membrane. They are several in a cell arranged in an elaborate framework. They contract together and deferentially to enable the muscle to contract as needed.

3 0
3 years ago
Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing sel
aliina [53]

Answer:

Which type of selection tends to increase genetic variation? A. Disruptive selection B. Directional selection C. Stabilizing selection

The Answer is option A (Disruptive selection)

Explanation:

Selection can either shift the mean value of a trait, reduce the trait's variation, or increase its variation.

Genetic variation which allows natural selection to increase or decrease frequency of alleles already in the population is a source of phenotypic variation as it refers to differences in all the hereditary information of members of the same species.

Disruptive Selection is important in maintaining variation and initiating speciation as it Increases Variation by favoring alleles corresponding to more extreme phenotypes. But for it to occur, the mean phenotype has to experience the lowest fitness. Disruptive selection affects the frequency distributions of alleles and genotypes within a population.

Disruptive selection is based on the variance of a trait in a population as it increases genetic variance by equalizing the frequencies of existing alleles at polymorphic loci (a genetic loci with two or more alleles). Disruptive selection maintains and may even increase variation in natural populations by favoring extreme phenotypes, individuals with extreme values for a trait have greater reproductive success than individuals with intermediate values.

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