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Otrada [13]
3 years ago
12

A marine biologist explains that the salmon adapts to its environment through descent with modification. What is "descent with m

odification"?
A heritable trait can be changed from one generation to another.
A learned behavior can be modified by each generation of fish in a population.
An offspring is similar to its parents but has unique features that distinguish it.
A useful adaptation is always passed down from a parent to its offspring.
Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

<u>Answer</u>: A heritable trait can be changed from one generation to another.

<u>Explanation</u>:

  • The concept of <em>descent with modification</em> was given by Darwin which simply states that the traits are passed on from the parents to the offsprings.
  • The traits that can be passed on are known as <em>heritable traits</em>.
  • These traits are passed on with the help of the genes.
  • So this passing on of traits explains the term <em>descent</em> in this concept. However, there are always chances that these heritable traits can be changed due to environmental factors or due to the process of recombination and thus the term <em>modification</em>.
  • So <em>descent with modification</em> means that a<em> heritable trait is passed from parents to offspring but it can be changed from one generation to another.</em>
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