Adaptation to terrestrial life involved major evolutionary changes. The change from gill breathing to lung breathing was accompanied by important changes in the

A) reproductive system.
B) cardiovascular system.
C) manufacture of blood cells.
D) association of blood and interstitial fluid.


Answer: B

Biology & Microbiology

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What will be an ideal response?

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The island of Surtsey, which formed from volcanic eruptions, was first colonized by _____.

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