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ankoles [38]
3 years ago
9

The picture represents a structure of the respiratory system.

Biology
1 answer:
marusya05 [52]3 years ago
3 0

Answer:

ITS B

Explanation:

to exchange oxygen with carbon dioxide

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Freshwater is defined as having a low _______ concentration, usually less than 1%.
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Answer: salt

Freshwater is defined as having a low salt concentration, usually less than 1%.

Explanation:

Freshwater refers to the bodies of water that contain very low levels of dissolved salts. So, freshwater are unique for their low salt content (about 0.5% of salt) compared to the sea water with high salt content.

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Aerobic respiration produces a net gain of 32 ATPs

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