Question

Distinguish between open and close type of circulatoru system

Answer 1

Explanation:

1. Open type in which the blood is pumped out of the heart and the cells and tissues are directly bathed in it
2. Closed type in which the blood is circulated through a series of vessels of varying diameters (arteries, veins, capillaries)

Answer 2

Answer:

Explanation:

OPEN CIRCULATORY SYSTEM : Where there are no blood vessels to carry the blood and the blood is thrown or rather  flows to the heart throughout the body. Found in cockroaches.

CLOSED CIRCULAR SYSTEM : Where the blood is carried by blood vessels . Found in humans.