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jeka57 [31]
3 years ago
6

Which best describes the respiratory system?

Biology
1 answer:
maw [93]3 years ago
6 0

Answer:

A

Explanation:

The respiratory system allows for gas exchange, water and heat balance, and creation of sound and speech. I just took quiz and this 1 was right.

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When the insecticide was sprayed some of the cockroaches survived and continued reproduction due to their resistance to the spray.Therefore it can inferred that although the cockroaches share the same genetic materials, the variations in individuals within the same specie played a role in the survival of some of the cockroaches.

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