PT113.S2.Q20 > Analytics

SECTION 1 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7

PASSAGE 2

Question 8 Question 9 Question 10 Question 11 Question 12 Question 13

PASSAGE 3

Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21

PASSAGE 4

Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 2 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 3 · lr

SECTION 4 · lr

Researchers hypothesize that Antarctic seals store oxygenated blood in their spleens. The reasoning for this hypothesis isn't given.

The researchers assume that it is possible to store oxygenated blood in the spleen, and that the seals would need to do so for some reason, perhaps because they need greater capacity to store oxygen than just in their bloodstream.

This weakly strengthens the hypothesis by establishing that it is at least possible to store oxygenated blood in the spleen, as shown by horses, another mammal species.

If anything, this would slightly weaken the argument by telling us that many seals already have a built-in \"overflow\" space for extra oxygen. This makes it less likely that Antarctic seals would need to store additional oxygenated blood in their spleens, since they might also be able to store oxygen in their muscles.

This strengthens the argument by telling us that seals do have a need to store oxygen somewhere besides their lungs and bloodstream. The spleen is one potential place for oxygen to be stored.

This strengthens the argument, because it suggests that Antarctic seals spleens’ have some special function related to long dives, which could well be the storage of oxygenated blood.

This strengthens the argument, because it implies that Antarctic seals’ spleens are designed for storing blood.

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156

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PrepTest 113 - Section 2 - Question 20

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