What are the two types of circulatory systems in animals?
What are the two types of circulatory systems in animals?
Open type and closed type
Incomplete and complete
Tissue level and organ system level
Arteries and veins
Solution
The circulatory system in animals may be of two types: open type in which the blood is pumped out of the heart and the cells and tissues are directly bathed in it, and closed type in which the blood is circulated through a series of vessels of varying diameters (arteries, veins and capillaries).