The Circulatory Systems of Bony Fishes, Rays, and Sharks Are

question 80

Multiple Choice

The circulatory systems of bony fishes, rays, and sharks are most similar to ________.

• A) those of birds, with a four-chambered heart
• B) the portal systems of mammals, where two capillary beds occur sequentially, without passage of blood through a pumping chamber
• C) those of reptiles, with one pumping chamber driving blood flow to a gas-exchange organ, and a different pumping chamber driving blood to the rest of the circulation
• D) those of sponges, where gas exchange in all cells occurs directly with the external environment
• E) those of humans, where there are four pumping chambers to drive blood flow

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Definitions:

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