Question

How many types of circulatory pathways are present in the animal kingdom?

• A. One
• B. Two
• C. Three
• D. Four

Answer 1

Answer:

B. Two

• The circulatory pathways are of two major types-open circulatory systems and closed circulatory system.

• The closed circulatory system is considered to be more advantageous as the flow can be more precisely regulated.