_ occurs because natural selection gives some alleles a better chance of survival than others:
Correct answer: B. Evolution
- A. Fitness
- B. Evolution
- C. Crossing over
- D. Artificial Selection
Explanation
A mechanism of evolution in which allele frequencies of a population change over generations due to chance.Some chances favor more to a specific allele as compared to its counterparts,thus remains.Some variations make an individual better suited to survive and reproduce in their environment. Natural selection is a mechanism, or cause, of evolution.
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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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