Multiple choice

Population is the unit of _____.

  1. evolution

  2. radiation

  3. microevolution

  4. none of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Evolution operates at the population level through changes in allele frequencies over generations. Individuals do not evolve - populations do. Radiation is an atomic process, not evolutionary. Microevolution describes small-scale changes but doesn't define the unit. 'None of these' would incorrectly suggest population is not the answer.

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