Module I: Reading and Writing

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Bing Xie and her team have discovered that plains zebras make at least four types of vocalizations: "snorts," "soft snorts," "squeals," and "quagga" calls. The researchers used machine-learning algorithms to ______ recorded vocalizations according to type, finding that snorts vary across individual zebras, while squeals are more uniform across zebra populations.
Which choice completes the text with the most logical and precise word or phrase?
1
Mark for Review
collapse
categorize
suppress
extend
The following text is from Chinua Achebe's 1964 novel Arrow of God. The novel is set in Nigeria in the 1920s. Ezeulu, who is the religious leader for several villages, announces when the annual yam harvest can begin.
Whenever Ezeulu considered the immensity of his power over the year and the crops and, therefore, over the people he wondered if it was real. It was true he named the day for the feast of the Pumpkin Leaves and for the New Yam feast; but he did not choose it. He was merely a watchman. His power was no more than the power of a child over a goat that was said to be his.
As used in the text, what does the word "considered" most nearly mean?
2
Mark for Review
Respected
Anticipated
Pondered
Allowed
Researchers have long debated the origins of silver used in European coins from the 600s through the early 800s CE. Geochemical analysis by Kershaw et al. of 49 coins dating to 660–820 CE provides concrete evidence that reconciles two competing theories: early coins were made from Byzantine silver, and later coins used Frankish silver, findings that provide firm details in a previously ______ area of study.
Which choice completes the text with the most logical and precise word or phrase?
3
Mark for Review
authoritative
speculative
esoteric
solitary
In the search for new impact craters on Mars, the roles of seismic monitoring and orbital imaging as data sources are ______: when vibrations detected with seismic monitoring indicate roughly where an impact has occurred, researchers can use orbital images of that relatively limited area of the rocky surface to precisely locate a new crater.
Which choice completes the text with the most logical and precise word or phrase?
4
Mark for Review
complementary
interchangeable
exhaustive
redundant
Understanding juvenile sea turtles' migratory patterns is crucial for conservation efforts. While adult sea turtles are well studied, little is known about juveniles during their oceanic stage, when they spend most of their time in the open ocean. To learn about this stage, researchers tagged and released six juvenile green sea turtles (Chelonia mydas) into the eastern Caribbean Sea. Their findings revealed that the majority of the turtles passively drifted with ocean currents throughout the region. However, two individuals swam against the currents, possibly in search of foraging grounds off the coast of South America.
Which choice best states the main purpose of the text?
5
Mark for Review
To suggest reasons why some juvenile sea turtles swim against the ocean currents
To describe successful conservation efforts for sea turtles
To summarize research on an understudied stage of sea turtle development
To compare the behavior of adult and juvenile sea turtles during migration
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