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kupik [55]
3 years ago
10

What effect did the increased oxygen levels have on Earth?

Biology
1 answer:
Alexxx [7]3 years ago
7 0
I think that the answer is global warming
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The correct answer is <span>d. 62%.

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Complete the sentences. Each term may be used more than once.
11Alexandr11 [23.1K]

Answer:

The correct answer is -

1. right-handed

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f. One effect  negative supercoiling in bacterial chromosomes is to promote separation of the two strands of DNA in the double helix

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Limate warming trends allow plant and insect species to inhabit larger ranges.
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