Answer Choices
reveal Ken Dial’s motivation for undertaking his project.
underscore certain differences between laboratory and field research.
show how an unanticipated piece of information influenced Ken Dial’s research.
introduce a key contributor to the tree-down theory.
Explanation for Question 25 From the Reading Section on the Official Sat Practice Test 3
Question 25 says in the second paragraph in lines, 2 12 through 32, the incident involving the local ranchers serves mainly to what? 3 So let's look in the passage for some context here in that second paragraph. 4 So it starts off with saying Ken settled on the chukar Partridge as 5 a model species, but he might not have made his discovery without a key 6 piece of evidence from the local rancher in Montana, 7 who was supplying him with the birds. So that is going to be the 8 first kind of indicator of the answer here. 9 Just saying that this interaction with the 10 rancher slash cowboy was key in developing 11 this whole theory. That is being outlined here. 12 It goes on to say when the Cowboys stopped by to see how things 13 were going, Ken showed him his nice tidy laboratory setup and explain how the 14 birds first hops and floods would be measured. 15 The rancher was incredulous. He took one look and said in pretty colorful language, 16 what are those birds doing on the ground? They hate to be on the 17 ground, give them something to climb on. At first it seemed unnatural. 18 Ground birds don't like the ground, but as he thought about it can realize 19 that all the species he'd watched in the wild preferred to rest on legends, 20 low branches and other elevated purchase, where they were safe from predators. 21 So the comment made by the cowboy, 22 the rancher dude gave him this kind of epiphany here 23 about how birds in the wild actually behave. 24 So let's look at the an...