Which Statement About the Open Circulatory System of a Crayfish

question 16

Multiple Choice

Which statement about the open circulatory system of a crayfish is false?

• A) A pump is present.
• B) Blood is returned to the heart in veins.
• C) The blood is part of the interstitial fluid.
• D) Interstitial fluid bathes the tissues directly.
• E) Crayfish have many arteries,which extend forward and backward from the heart.

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