Darwin's Theory — Quiz

Question 10 • Biology

What is natural selection ?

Answer

a process that causes random variations to appear in the offspring of every generation

a process that selects variations that help with survival and that spreads the variations to more offspring

a process through which nature selects an individual within a population for extinction

a process that causes all populations to gradually increase in size

Explanation

Natural selection occurs when individuals with inherited variations that improve survival or reproduction tend to leave more offspring. Over generations, those helpful variations become more common in the population. This matches the choice describing variations that help with survival and spread to more offspring.

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