Chapter 17 and 18 Tes Review Flashcards by Brian Thai | Brainscape

Q

How long has our sun been existing?

A

5-10 billion years

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Q

How long has ur earth been existing?

A

4.6 Billion years

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Q

How long have the prokaryotic cells been around?

A

3.5 billion years

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Q

First Eukaryotic cells

A

1.4 billion years

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Q

Australopithecus ramidus

A

4-5 million years

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Q

Homo erectus

A

2 million

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Q

Homo sapiens

A

200,000 years

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Q

How long has our universe been existing?

A

10-20 Billion years

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