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Questions and Answers
What is the approximate duration of the Paleozoic Era in million years?
What is the approximate duration of the Paleozoic Era in million years?
- 251mya
- 541-251mya (correct)
- 541mya
- 290mya
Which period is characterized by the sudden diversification of metazoan?
Which period is characterized by the sudden diversification of metazoan?
- Ordovician Period (correct)
- Silurian Period
- Devonian Period
- Cambrian Period
What percentage of all marine species became extinct during the Permian Period?
What percentage of all marine species became extinct during the Permian Period?
- 75%
- 50%
- 96% (correct)
- 90%
What is the name of the first vertebrate to appear in the fossil record?
What is the name of the first vertebrate to appear in the fossil record?
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In which period did the first bird appear?
In which period did the first bird appear?
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What is the approximate duration of the Mesozoic Era in million years?
What is the approximate duration of the Mesozoic Era in million years?
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