Question

read this part of the text. which sentence gives the best summary of this paragraph? so how does the wood frog freeze and live? scientists are trying to find out. they do not know all the answers yet. but they have learned some things. temperatures go below freezing. wood frogs fill their cells with sugar. the sugar helps keep their cells from freezing. a scientists found out that wood frogs grow fur or fat in the winter. b scientists learned that wood frogs dig deeper holes than other animals. c scientists found out that temperatures go below freezing many times. d scientists learned that wood frogs use sugar to keep from freezing.

Explanation:

The text focuses on how wood - frogs survive freezing by filling their cells with sugar. Option D accurately summarizes this key point. Options A, B, and C mention details that are not the main focus of the paragraph.

Answer:

D. Scientists learned that wood frogs use sugar to keep from freezing.