Explain what is meant by phenotypic plasticity. Each of us is genetically unique

Question

Explain what is meant by phenotypic plasticity. Each of us is genetically unique. Describe two processes that ensure that your future sibling is going to be genetically different from you, even though you have the same parents. How does the fossil record provide evidence that the use of feathers for flight by birds is an capitation? B How do phylogenies help with determining the type of fossils that needed to be found to tell the story of movement onto land? How do phylogenies help us track the homologous structures such as the bones of the jaw and car?

Explanation / Answer

A. Phenotypic plasticity
Phenotypic plasticity is the ability of an organism to express different phenotypes when exposed to different environmental conditions. The changes can be  morphological, physiological or behavioural which may or may not be permanent throughout an individual’s lifespan.
Examples: seasonal polyphenism in butterflies, environmental sex determination in reptiles

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