Question
How do fossils help us in understanding the evolutionary history?
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Answer
- Fossils in different sedimentary layers indicate the geological period in which they existed.
- They show that life forms varied over time.
- New forms of life have arisen at different times in the history of earth.
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OR
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- Explain the following giving one example of each.
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- Degeneration codon.
- Universal codon.
- Initiator codon.
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Adaptations of desert plants and animals
Adaptations of desert plants and animals