Which factor decides what type of variation should be flourished and passed on to the next generations?
Correct answer: D. Environment
- A. Species
- B. Population
- C. Survival
- D. Environment
Explanation
The correct answer is Environment. The environment exerts selection pressures that influence the success of certain variations over others. Variations that offer a survival advantage in a given environment are more likely to be passed on to future generations. While Species and Population provide the genetic pool from which variations arise, they do not select which variations are successful. Survival is a consequence of how well organisms are adapted to their environment but is not the deciding factor for variation inheritance.
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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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