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Question 5 of 6
According to the professor, what factors led to the rapid distribution of notothenioids throughout the Southern Ocean?

A.

A genetic mutation occurred in the DNA of the earliest notothenioid.

B.

There was an increase in competition for food in temperate waters.

C.

Antarctica broke off and drifted away from the South American continent.

D.

The waters around Antarctica temporarily warmed up.

我的答案:

正确答案:AC

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