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6 votes
6 votes
Can y’all help me with this (picture down below)

Can y’all help me with this (picture down below)-example-1
User Richard Gomes
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1 Answer

18 votes
18 votes

1. A 1,000 Different Index species

2. The Cenozoic Era

3. The Cambrian Period

4. Younger than 5 million years

5. The Cambrian Period (same question but worded differently)

6. Because they existed for only a small period of time

7. because without the fossils in the rock layers they wouldn't know much about the animals during that time period

User Jonathan Penn
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