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MrRa [10]
2 years ago
8

Why are Polar bears are much larger than American black bears

Biology
1 answer:
Alika [10]2 years ago
7 0
This is because of natural selection; since polar bears live in a rough environment, natural selection gives them more fur, more muscle, and can go longer without food
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<em>The correct option is D) the rate of photosynthesis increases and then levels off.</em>

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Imagine you are sitting in a very quiet room when suddenly behind you there’s a very loud bang, like a firecracker exploding.
lisov135 [29]

Answer:

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Explanation:

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