The both have 8 arms, the squid has an extra 2 tentacles though.
This exchange process takes place in the aveolus (air sac) inside your lungs by diffusion.
it's from a different concentration gradient
the deoxygenated blood with carbon dioxide diffuse into a aveoli (which is in high concentration) and the aveoli release the oxygen into the blood stream (which is low concentration) therefore the blood will be oxygenated again
(16.5 m/s + 5 m/s) ÷ (40 m) = 0.5375 Hz
1 ÷ 0.5375 Hz = 1.86 s
round up and you get 1.9 s, so the answer would be A.
Explanation:
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