PT129.S3.Q24 > 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 · lr

SECTION 4 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5

PASSAGE 2

Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12

PASSAGE 3

Question 13 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 Question 27

The author concludes that lancelets have hearts, because they have a vessel that is similar to other hearts in their structure and contractions.

The conclusion is about having a heart, but we aren’t given information on what qualifies as having a heart. The support only comes from the structure and behavior of the lancelet’s vessel bearing similarity to other hearts. We can make the argument valid if we know for sure that one or both of these qualities (structure or behavior) having commonality with other hearts is enough to qualify as having a heart.

This is switching sufficient and necessary. (A) can only support a conclusion about having contracting vessels or, through contrapositive, not having a heart. We need something that would support a conclusion about having a heart.

Irrelevant. Just because other animals with one similarity to the lancelet have a heart, it does not strengthen the argument that lancelets have a heart. Even in a Strengthen question, this answer is problematic.

This links the vessel of the lancelet to a conclusion about having a heart. This means the traits of the lancelet’s vessel qualify for having a heart.

Similar to (A), a reversal of what we need. We need for “properly considered a heart” to be a necessary condition. We need to conclude that something has a heart, and we cannot do that when it is in the sufficient condition.

Phrased another way, this is “If an animal has a heart, then it has an artery.” This has the same issue as (A) and (D)— We need to conclude that something has a heart, and we cannot do that when it is in the sufficient condition.

PrepTest 129 - Section 3 - Question 24

Difficulty

Analysis

Answer Popularity

Question history

Confirm action