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khloeallnn
26.03.2020 •
Biology
- 4y – 7y² – 2y ² – 7 x 3 – 4y² + y²
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Ответ:
-7x^3 -12y^2-4y
Explanation:
The -7x^3 is alone so you don't have to worry about adding or subtracting it. You add -7y^2-2y^2-4y^2+y^2 together then you just put the -4y because it's alone.
Ответ:
Explanation:
The bottleneck effect is an extreme example of genetic drift that happens when the size of a population is severely reduced. Events like natural disasters (earthquakes, floods, fires) can decimate a population, killing most indviduals and leaving behind a small, random assortment of survivors.