What is the main difference between an open circulatory system and a closed one?
A)An open system will have the blood leave the blood vessels and dump into the hemocoel while the closed one will retain the blood within the system.
B)An open system will keep the blood within the blood vessels while the closed one will dump the blood into the hemocoel.
C)An open system will have the blood leave the blood vessels and dump into the lungs or gills while the closed one will retain the blood within the system.
D)An open system will have the blood leave the blood vessels and dump into the lungs or gills while the closed one will retain the blood within the hemocoel.
E)The blood within a closed circulatory system does not contain hemoglobin.

Question

Quizplus · Accepted Answer

In an open circulatory system, blood leaves the vessels and enters body cavities (hemocoel), whereas in a closed circulatory system, blood remains within the vessels.

What Is the Main Difference Between an Open Circulatory System