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aksik [14]
3 years ago
11

What happens to oxygen levels when animals are introduced? Why?

Biology
1 answer:
Allushta [10]3 years ago
7 0

Answer:

Higher oxygen levels means animals can grow larger and still maintain the supply of oxygen to their muscles. Falkowski and colleagues calculated fluctuations in the atmosphere's oxygen levels from cores of deep-sea rocks dating back 205 million years.

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