10 free PSAT/NMSQT practice questions in the real exam format, covering the official content areas, with an explanation for every answer.
PSAT/NMSQT Practice Test 7Tutor mode
Question 1 of 10
Information and Ideas
Which finding, if true, would most directly support the biologists’ hypothesis?
Healthy coral reefs are noisy places, full of the crackle of snapping shrimp and the grunts and pops of fish. The larvae of many reef fish spend their first weeks drifting in open water before settling onto a reef. Some marine biologists hypothesize that these young fish use reef sounds to locate a place to settle. Because damaged reefs are much quieter than healthy ones, the biologists suggest, such reefs may fail to attract new fish even when suitable habitat remains.