[Video] Q29: No change or dissected or traced or analyzed

Explanation for Question 29 From the Writing Section on the 2019 April Sat

29 is asking us for the appropriate word choice in this situation, 2 the sentence says at each site they blank flock composition. 3 Um, in other words, the percentage of observed flocks that were mixed, 4 um, and measured the linearity of their songs. 5 So they took some different measurements. So here we want to look for the 6 appropriate verb in this case, 7 diagnosed is not the right fit, 8 the no change option, um, diagnosed with applied to, 9 um, uh, sort of a case where you're, you're applying, 10 um, not necessarily a prognosis, 11 but sort of assessing what is going on, 12 um, providing that diagnosis, 13 we would say so diagnosed, 14 maybe you might expect to find in more of a medical setting, 15 something like that. So diagnosing flock composition, 16 isn't something that we would really say diagnosis is not the right verb for 17 that situation. Um, dissected again, 18 um, that's sort of in this case would mean like picking apart, 19 breaking it down. 20 Um, also not quite the right fit, 21 um, dissected you might expect to see on a smaller scale, 22 like, um, breaking something apart rather than just kind of keeping 23 track of it. See traced. 24 This is, um, a slightly better answer to there. 25 They're looking at flat composition, but traced kind of has the implication that it's 26 occurring usually over time or, 27 or across a geographical spread or something like that. 28 There's not really, um, anything to suggest that we're talking about tracing anything over...