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Brrunno [24]
3 years ago
5

What was the major contributor of oxygen to earth's early atmosphere?

Biology
2 answers:
erica [24]3 years ago
7 0
<span>It's a bacteria that grew along all the ocean coast that took in carbon and through photosynthesis, turned it into oxygen, the process took about a billion years.</span>
IRINA_888 [86]3 years ago
7 0
Photosynthesis I believe
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The micro tunnels are regulated gates through which this molecules pass.

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3 years ago
What are two of the products of the Krebs cycle
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Answer:

What are two of the products of the Krebs cycle

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NADH and FADH2 are the two products of the krebs cycle.

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Explanation:

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3 years ago
you collect samples of soil from a nearby field and isolate and sequence the DNA of several microorganisms you find there. This
timama [110]

Answer:

Soil Microbiome

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True

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