PT152.S1.Q13 > Question

SECTION 1 · 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

SECTION 2 · lr

SECTION 3 · rc

PASSAGE 1

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

PASSAGE 2

Question 7 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

PASSAGE 4

Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 4 · lr

Despite the ban on TBT, which had caused a decline in the native oyster population, the now-endangered oysters haven’t recovered.

The correct answer will be a hypothesis that explains why the TBT ban didn’t help the endangered oyster population as expected. That explanation must provide some new problem facing the oyster population after TBT was banned, or some reason that TBT was in some way useful to the oyster population. The result must be that the oyster population didn’t rebound.

The increase in water temperature wasn’t the problem. We need to know why the TBT ban didn’t help the osyters, and without more information about the effects of the water temperature, this isn't helpful.

If anything, this eliminates one way the TBT ban could’ve gone wrong: that barnacles competed with oysters for food. It certainly doesn’t explain why the TBT ban was ineffective.

So TBT eliminated competition that harmed the native oysters. The competition intensified after the TBT ban, hence why the native oyster population didn’t rebound.

Like (B), this removes a possible downside of the TBT ban: that the chemicals that replaced TBT were also harmful to the oysters. This doesn't explain why the oyster population didn’t grow after the TBT ban.

But TBT was banned, so it can’t factor into an explanation for why the oyster population didn’t rebound. This doesn't tell us what other factor is keeping native oyster populations low.

PrepTest 152 - Section 1 - Question 13

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