Which of the Following Statements About Open Circulatory Systems Is

question 138

Multiple Choice

Which of the following statements about open circulatory systems is false?

• A) A pump is usually present.
• B) Blood is pumped out of openings in the heart called ostia.
• C) The blood is the interstitial fluid.
• D) Tissue fluid bathes the tissues directly.
• E) Many mollusks and all arthropods have open circulatory systems.

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