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iren [92.7K]
3 years ago
13

Of which era was the cretaceous period?

Biology
1 answer:
Anna11 [10]3 years ago
7 0
The Cretaceous Period was the last and longest period of the Mesozoic Era. It lasted 79 million years.
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Complete the sentence below by selecting the correct words from the drop-down menus.
Zanzabum

Factors that affect natural selection include variability among all, reproduction and heredity.because the genetic variability of these species may express genes that are not conducive to the evolution of the species

<h3>What factors affect natural selection?</h3>

For natural selection to occur, there are some factors:

  • variability among all
  • reproduction
  • and heredity.

Variability between substances: Organisms of the same species have variations in their characteristics.

With this information, we can conclude that factors that affect natural selection include variability among all, reproduction and heredity.

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