SAT #9 (QAS April 2017) Reading Question 47

An analysis and breakdown for Question 47 from the Reading Section for the SAT #9 (April 2017 QAS). Here's a written explanation for the question:

"Answer Choice D is the correct answer because Lines 30-32 say, “The calcified, or rigid-bodied seaweed has multiple noncalcified joints that make it flexible yet strong enough to handle that setting.” These Lines tell us most clearly about the structure of C. cheilosporioides, and that it has a hard, rigid body, yet soft joints that allow it to bend and be flexible. This most closely matches Answer Choice D, which says that the structure of the alga has components that “operate together to allow for suppleness.” Answer Choice A is incorrect because the Passage doesn’t indicate that the seaweed can change its density. Answer Choice B is incorrect because, although the Passage does present the structure of the alga as crucial to how it withstands its harsh environment, it doesn’t specifically make the case that these structural components protect its cell interior. Answer Choice C is incorrect because the Passage doesn’t say that the seaweed has components that can regenerate as it matures."

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