Which of the following best describes the purpose of the second paragraph of the passage?

According to the passage, the difference in the amount of cratering on Callisto's and Io's respective surfaces can probably be explained by the difference between these two moons with respect to which of the following factors?

The author of the passage would probably agree with which of the following statements about the SCNs?

The passage mentions each of the following as a function regulated by the SCNs in some animals EXCEPT

The primary purpose of the passage is to

The passage implies that which of the following is a possible consequence of a company's adoption of innovations that increase its ecoefficiency?

The passage mentions which of the following as a possible consequence of companies' realization of greater profits through ecoefficiency?

The primary purpose of the passage is to

The author is primarily concerned with

According to one explanation of the "confusion effect," a fish that swims in a school will have greater advantages for survival if it