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vredina [299]
3 years ago
9

What is meant by the statement "Evolution may proceed along 'genetic lines of least resistance'"?

Biology
1 answer:
Ivan3 years ago
6 0

Answer:

C. Characters with little genetic variation will constrain the rate of natural selection

Explanation:

Natural selection can have an effect only as long as there are variations on characters on which it can select upon. Genetic variation is independent of the environment or the needs that a species may have to become better adapted to its changing environment. In other words, genetic mutations are the raw material on which natural selection can work. If there is a low rate for mutations to occur, then natural selection will proceed at a slow pace. The opposite is also true. Since mutation rate may be more frequent at some locations in a gene than at others, it can be predicted that the characters coded in that gene location will be more likely to be affected by natural selection and therefore what phenotype may be molded by natural selection.

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How can genetic mutations increase the variation in a population over time?
hichkok12 [17]

Answer:

The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism's DNA that create diversity within a population by introducing new alleles.

Explanation:

5 0
3 years ago
Most of the digestion and absorption in the small intestine is accomplished by the __________; the longest portion of the small
Romashka [77]

Most of the digestion and absorption in the small intestine is accomplished by the duodenum; the longest portion of the small intestine is the ileum.

<h3>What is Digestion and Absorption?</h3>

Digestion stands for the complex function of turning the food you eat into nutrients, which the body utilizes for energy, growth, and cell repair required to survive. The digestion process also concerns creating waste to be eliminated.

Digestion stands for the breakdown of extensive insoluble food molecules into small water-soluble food molecules so that they can be immersed in the watery blood plasma. In particular organisms, these smaller substances exist absorbed via the small intestine into the bloodstream.

Absorption exists as a physical or chemical phenomenon or a procedure in which atoms, molecules, or ions penetrate some bulk phase – liquid or solid material. This is a separate process from adsorption since molecules undergoing absorption stand taken up by the volume, not by the surface.

To learn more about Digestion and Absorption refer to:

brainly.com/question/1615825

#SPJ4

8 0
2 years ago
Component of earth's life support system where life is found
ella [17]

Answer:

no

Explanation:

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6 0
3 years ago
Gametogenesis is that mitosis or meiosis
schepotkina [342]
Meiosis because it is the process of gamete formation, which is gametogenesis
8 0
3 years ago
Read 2 more answers
Help me on problem 14 b please
Juliette [100K]

If the food is limited to the squirrels then that could impact how well they reproduce which could impact their numbers which therefore could impact the food source for the foxes which eat them. Fewer squirrels means the foxes will slow down on their reproductive numbers as well...they are all linked!

7 0
3 years ago
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