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Zielflug [23.3K]
3 years ago
5

What do mucus, saliva, and tears have in common?

Biology
1 answer:
Assoli18 [71]3 years ago
5 0

Answer:

D

Explanation:

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Answer:

1.

To back up the scientist, when a person is more fit, their breathing will return to a normal rate faster than average, as B's rate returned faster than everyone else's, they are more fit.

Another reason the scientist could be right, is when a person is very athletic and fit, their resting heart beat is lower than an average person's heart rate. As person B has the lowest at 10, this would make them more fit.

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If the scientist counted wrong at all while measuring breath rates, the results could be wrong.

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Use the principle of original horizontality to identify the two rocks that are nearly the same age.
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