The smallest biological unit that can evolve over time is
Correct answer: B. A population
- A. A community
- B. A population
- C. A species
- D. An ecosystem
Explanation
The smallest unit of evolution is population as it is the smallest unit of living organisms that can undergo evolution. A population is considered to be a "pool" of genes and gene types that are responsible for the genetic diversity of all the individuals within the group.
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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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