#Question id: 4620
#Section 2: Evolution
The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?
#Question id: 4621
#Section 2: Evolution
DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. The most likely explanation for this result is that
#Question id: 4622
#Section 2: Evolution
Catastrophism, meaning the regular occurrence of geological or meteorological disturbances (catastrophes), was Cuvierʹs attempt to explain the existence of
#Question id: 4623
#Section 2: Evolution
Which of the events described below agrees with the idea of catastrophism?
#Question id: 4624
#Section 2: Evolution
What was the prevailing notion prior to the time of Lyell and Darwin?
#Question id: 4563
#Section 2: Evolution
If ʺxʺ indicates the location of fossils of two closely related species, then fossils of their most-recent common ancestor are most likely to occur in which stratum?