[Video] Q29: What is a main idea of the seventh paragraph (lines 62-73)?

Answer Choices

  • Different types of hierarchies exist in each flock of birds.

  • Mistakes can happen when long-winged birds create a V formation.

  • Future research will help scientists to better understand V formations.

  • Long-winged birds watch the lead bird closely to keep a V formation intact.

Explanation for Question 29 From the Reading Section on the Official Sat Practice Test 7

Question 29 asks, what does it mean idea of the seventh paragraph line 62 2 through 73. So let's look at the topic sentence of this paragraph to see 3 what kind of information it introduces. And then we can better determine the correct 4 answer to this question. So that's seven paragraph has seen 5 right there, the introduction, 6 the introductory sentence says, scientists do not know how birds, 7 how the birds find that aerodynamic sweet spot, 8 but they suspect that animals align themselves either by sight or by sensing air 9 currents through their feathers. And then it goes on to discuss that, 10 or it goes on to discuss like the motivation or the content of future 11 studies. So we want to find an answer choice here that talks about kind 12 of how these birds understand their place in the V formation and maybe also 13 referencing future research. So if you look at the answer 14 choices here, D or answer choice a says different kinds of hierarchies exist in 15 each flock of birds. 16 So it's choice is pretty far off the mark here. 17 We're not talking about like the social engagement of birds that would be 18 hierarchies like behavioral things. 19 So in this case, that would be incorrect. 20 B says mistakes can happen when long the wing, 21 when long winged birds create a V formation. 22 So that's a bit of a specific idea here, 23 and they're not talking about like the advantages and 24 disadvantages they're talking about like, how do these birds do this in the first 25 pl...

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