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Lapatulllka [165]
3 years ago
5

OK THIS IS A BIG ONE! ANSWER ALL OF THESE AND YOU GET 20 POINTS! HURRY UP AND GET THE POINTS btw make sure there right

Biology
1 answer:
Svetllana [295]3 years ago
8 0
Ok I know I'm not getting 20pts, but here r the answers:
17. C
18.A
19.D
20.A
21. can't see all answers, but is gravity. or gravitational pull
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Explanation:

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According to the oxygen-hemoglobin dissociation curve, PO2 in the lungs of 100 mm Hg results in Hb being 98% saturated. At high
tatiyna

Answer:

95%.

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Oxygen-hemoglobin dissociation curve:

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Here in the above scenario at the high altitude oxygen is less and at 80 mmHg, Hb would be 95% saturated.

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