Adaptations that an organism acquires by its own actions are:
Correct answer: B. Non-heritable
- A. Heritable
- B. Non-heritable
- C. Both A and B
- D. Acquired
Explanation
Natural selection can amplify or diminish only those variations that are heritable. It is noteworthy to say that adaptations that an organism acquires by its actions are not heritable. The specifics of natural selection are regional and timely; environmental factors vary from place to place and from time to time. An adaptation in one situation may be useless or even detrimental in other circumstances. An example of natural selection in action is the evolution of antibiotic resistance in bacteria.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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