[Video] Q24: In the second paragraph (lines 12-19), what do the authors claim to be a feature of biological interest?

Explanation for Question 24 From the Reading Section on the Official Sat Practice Test 1

Okay. So number 24 says in the second paragraph, 2 what do the authors claim to be a feature of biological interest? 3 Um, so remember the second paragraph, 4 just talked about how there's two chains, right? 5 That was the feature that was a biological interest. So we already have that 6 written as our main idea. Now that made our job a lot easier. 7 Let's just see if two Chainz is one of the options and it is 8 letter D talks about how there's two chains. That's the feature that we're looking 9 for. We answered that question in about 10 seconds because we already had the 10 work done for it. So, um, 11 you can see how useful the strategy is of writing the main idea for 12 each paragraph and how quick it can get you the answers for some of 13 these cases.