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August 2018 Living Environment Regents Questions 21-30 Multiple Choice Test

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August 2018 Living Environment Regents Questions 21-30

Use your knowledge of Living Environment to answer all questions in the data set. You may need a calculator to answer some of the questions. Good Luck. Corresponding data sets: 56839, 56840, 56841, 56842

NOTE: If the question contains an image, clicking on it will enlarge it for easier viewing. If there is a "More Info" link after the question, clicking it will display additional content related to the question.

Single-celled organisms are able to maintain homeostasis, even though they lack higher levels of organization such as organs and organ systems, because

Sharks are often followed by smaller fish that eat some of the scraps from the organisms eaten by the shark. These smaller fish are acting as

The best explanation for the differences in the appearance of the twins is that

Under the supervision of experts, certain areas in a nature preserve are regularly exposed to frequent, low-intensity fires. These controlled fires maintain specific populations of plants by directly

Which statement best describes the effect of the water flea on the lake?

A stable ecosystem can have high biodiversity because each species in that ecosystem

Stability within an ecosystem is achieved partially by the presence of organisms that break down important molecules and make them available for other organisms to use. These organisms are

The hormone referred to in this feedback mechanism is

This sequence of rock layers best illustrates the concept that

In the pyramid, the arrows labeled X represent

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