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Answer: Exaptations
Explanation:
Exaptation explains a shift in the function of a trait during evolution. For example, a trait can evolve because it is used for one particular function, but eventually it may come to be used foranother function. Exaptations are found both in anatomy and behaviour. A classic example are bird feathers: at first they may have evolved for temperature regulation, but subsequently were adapted for flight. Exaptation was said to proposed by Stephen Jay Gould and Elisabeth Vrba as a substitute for what they considered to be a teleologically loaded term 'pre-adaptation'.[
the answer is b............
The protons and neutrons of an atom are found in the nucleus at the centre of an atom
