The first known bird fossil date to the mesozoic era of time.
Explanation:
- The first known bird fossil is Archaeopteryx.
- Archaeopteryx were not exactly like modern birds and are called dinosaur like birds..
- Carbon dating suggest that these birds evolved during the jurassic period of mesozoic era.
- These are considered as the only birds of that era.
- Ancestors of modern birds began to evolve during cretaceous period and kept on evolving through Cenozoic era.
Answer:
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Answer:
A disruption of homeostasis
Explanation:
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Option 1 is the correct answer
1. D i think
2. A.
3. B
4.C i think
5. A
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