Please help answer all parts of question and make the answers simple please 1. What is natural selection? What are the FOUR factors that affect natural selection? Give an example of how each of these factors affects natural selection?

2. Why would natural selection not occur without genetic variations?

Natural selection requires four conditions: reproduction, inheritance, variation in fitness of organisms, and diversity in individual traits among population members. Natural selection occurs automatically if they are satisfied. A population can't adapt in response to changing environmental circumstances without genetic variety, and so as a result, it's at danger of extinction.

Explanation:

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