Biologist: Lions and tigers

Answer choices

1. A

   Too Weak7% picked this

   The skeletons of lions and tigers are at least somewhat similar in structure in certain key respects to the skeletons of at

   This comparison draws a common thread between lions, tigers, and some extinct predators, but leaves open the possibility that some skeletal features are unique enough to determine whether those extinct predatory animals hunted in packs.

   7%
2. B

   Too Weak17% picked this

   There have existed at least two species of extinct predatory dinosaurs that were so similar to each other that their

   The similarity between the skeletal anatomy between the two extinct predatory animals may also have a characteristic that would enable paleontologists to determine whether they hunted in packs.

   17%
3. C

   Correct67% picked this

   If skeletal anatomy alone is ever an inadequate basis for inferring a particular species' hunting behavior, then it is never reasonable to infer, based

   Why this is right

   This ensures that what is true of lions and tigers is also true for extinct predatory animals, such as dinosaurs.

   Skill tested: Sufficient Assumption · how this choice captures the argument's function is the move to repeat next time.

   67%
4. D

   Reversed Comparison5% picked this

   If any two animal species with virtually indistinguishable skeletal anatomy exhibit quite different hunting behaviors, then it is never reasonable to infer, based solely

   The issue isn’t whether paleontologists could infer that two species have the same skeletal anatomy, but rather whether they could infer the hunting behavior of those extinct predatory animals based solely on their skeletal anatomy.

   5%
5. E

   Weakens5% picked this

   If it is unreasonable to infer, solely on the basis of differences in skeletal anatomy, that extinct animals of two distinct species differed in

   This would suggest that if the skeletal remains were not indistinguishable, then it would be reasonable to infer differences in hunting behavior of two distinct species of extinct animals based on differences in skeletal remains.

   5%