What Is One Advantage of Closed Circulatory Systems as Compared

question 7

Multiple Choice

What is one advantage of closed circulatory systems as compared to open circulatory systems?

• A) Transport is slower in closed systems,increasing the time for gas exchange.
• B) Closed systems have a higher capacity to direct blood to specific tissues.
• C) In closed systems,cells and large molecules can mix with nutrients absorbed in the intestines and directly feed all cells.
• D) In closed systems,there is no distinction between blood and interstitial fluid.
• E) Closed systems use less energy.

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In an experiment, the variable that is thought to be affected by manipulations of the independent variable.

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