The circulatory system of cephalopods is more efficient than that of other molluscs because
A)it has blood.
B)it is closed.
C)cephalopods breathe air.
D)all of these

Question

Quizplus · Accepted Answer

The circulatory system of cephalopods is more efficient than that of other molluscs because it is closed. This allows for better control of blood pressure and the ability to direct blood flow to specific areas of the body. The presence of blood and ability to breathe air are common traits among many different animals and are not specific to cephalopods.

The Circulatory System of Cephalopods Is More Efficient Than That