I do not get it can you explain any better
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Answer:
541 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended about 252 million years ago with the end-Permian extinction, the greatest extinction event in Earth history.
source- Britannica
Explanation:
An example of selective breeding is breeding cattle to produce better meat.
Answer:
a zygote, which is created when a male and a female gametes join…
Explanation: