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1) describe why is the Hardy-Weinberg law useful?

2) Define the term genetic drift.

3) What factors affect the mutation rate of a population?

4) In brief describe the difference between stabilizing selection, directional selection, and disruptive selection.

5) describe why are layers of sedimentary rocks particularly helpful for geochronology?

6) Select three biomes and in brief describe their characteristics (including climate, common organisms and so on).

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