. Flow of blood within the body is called
a. heart beat.
b. blood circulation.
c. blood diffusion.
d. blood flow.
Best Answer
b. blood circulation
Explanation: It is two types:
Single Blood circulation: Blood passes through the heart once e.g., fish.
Double Blood circulation: Blood passes through the heart twice e.g., humans. Once the deoxygenated blood passes through the heart. Then oxygenated blood passes through the heart.
Related questions
