Directions: These GMAT reading comprehension practice questions are based on the content of this passage. Read the passage carefully and choose the best answer to each of the questions on the basis of what is stated or implied in the passage.
evidence to support the idea that giant ground sloths became entirely extinct when humans and dogs first migrated together to the area
evidence to support the idea that the radiocarbon dating on the Cuba and Hispaniola fossils was incorrect
evidence to support the idea that giant ground sloths survived the last Ice Age
evidence to support the idea that giant ground sloths survived long after humans and dogs migrated into their habitats
evidence to support the idea that the giant ground sloth’s body size and population numbers did not make it vulnerable to disease
humans used giant ground sloth skins for clothing
humans relied on a diet of giant ground sloth meat
giant ground sloth bones have been found near human cooking utensils
the last giant ground sloth fossils found coincide with the arrival of humans
humans and dogs hunted together when they migrated into ground sloth habitats
arguing that theories about why the giant ground sloth went extinct all lack solid scientific evidence
comparing and contrasting the extinction of the giant ground sloth to the extinction of other animals
providing examples of the ways in which human populations contributed to the extinction of many different types of prehistoric animals
suggesting that the giant ground sloth was hunted to its extinction
summarizing several different theories about the reason for the giant ground sloth’s extinction
highly critical and unwilling to acknowledge alternate views
informative and research-based
amusing and slightly humorous
skeptical but willing to compromise
shocking and disturbing
Scientists will never be able to know for sure what happened to the giant ground sloth, so they should focus their efforts elsewhere.
It is certain that humans contributed to giant ground sloth extinction, but scientists do not yet know in what way.
None of the theories presented completely explains the disappearance of the giant ground sloth, but each has a certain element of viability.
Humans will one day be in danger of extinction, so they should learn what they can from the case of the giant ground sloth.
If each of the three incomplete theories were combined into one theory, then the giant ground sloth extinction would be completely explained.
human hunting must have been the cause of the giant sloth extinction
climate change would have less likely been the cause of giant sloth extinction
the theory that a great flood caused the sloth extinction could be discredited
human hunting as a cause of giant sloth extinction would be a less viable theory
scientists would need to find other fossils that confirmed their opinion
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