Which animal has countercurrent heat exchange to retain heat in a cold environment?

A. birds
B. whales
C. foxes
D. bony fish
E. bees


Answer: B

Biology & Microbiology

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What will be an ideal response?

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Fill in the blank(s) with correct word

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Summarize the results of one of the first investigations of the genetics of skin colorWhat will be an ideal response?

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