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.

Question

Quizplus · Accepted Answer

The open circulatory system of a crayfish does not have veins to return blood to the heart. Instead, the hemolymph (blood) circulates through sinuses and cavities in the body and eventually returns to the heart through ostia (openings in the heart).

Which Statement About the Open Circulatory System of a Crayfish