establishing a direct link between early large mammals and their modern counterparts
analyzing the ecological basis for the dominance of some carnivores over other carnivores
demonstrating the importance of hormones in mental activity
18. The author refers to a hungry lizard primarily in order to
demonstrate the similarity between the hunting methods of mammals and those of nonmammals
broaden the application of his argument by including an insectivore as an example
make a distinction between higher and lower levels of consciousness
provide an additional illustration of the brutality characteristic of predators
offer an objection to suggestions that all animals lack consciousness
19. It can be inferred from the passage that in animals less intelligent than the mammals discussed in the passage
past experience is less helpful in ensuring survival
attention is more highly focused
muscular coordination is less highly developed
there is less need for competition among species
environment is more important in establishing the proper ratio of prey to predator
20. The sensitivity described in lines 56-61 is most clearly an example of
free-floating awareness
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