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Mariulka [41]
3 years ago
15

A scientist who studies living things in the environment is a what?

Biology
1 answer:
N76 [4]3 years ago
7 0
A scientist who studies living things is called a biologist
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Reproductive isolating mechanisms are divided into categories based on when they act. _____ isolating factors prevent fertilizat
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Answer: (B) Pre-zygotic; post-zygotic.

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Prezygotic isolation occurs before fertilization of eggs. It occurs between the two sex gametes and deter sexual reproduction between different species.

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Whereas, postzygotic isolation prevents the formation of fertile offspring. This phenomenon leads to production of an hybrid offspring from different species and this is a form of speciation in nature.

Mechanisms of postzygotic isolation include hybrid inviability, hybrid breakdown, and hybrid sterility.

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