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frutty [35]
3 years ago
10

Which is the first era of Earth’s history?

Biology
2 answers:
sergiy2304 [10]3 years ago
7 0
I believe it’s Precambrian.
Igoryamba3 years ago
7 0

Answer:

Paleozoic era

Explanation:

The first major extinction in Earth's history occurred two to five million years ago, two deadly climaxes over hundreds of thousands of years. Most creatures lived in the seas at this time, so many of the marine creatures of that time, such as trilobites, brachiopods, and graptolites, were destroyed. During this third deadliest extinction, 5 to 5 percent of all species have been extinct.

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2 years ago
All sodium atoms have 11 protons in the nuclei of sodium Adams contains 12 neutrons and others contain 11 these different forms
Savatey [412]
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2 years ago
What type of reaction is shown?
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i konw it i think

5 0
3 years ago
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4 0
3 years ago
Which allele combination represents a male who has an X-linked recessive disorder?
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8 0
3 years ago
Read 2 more answers
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