Biology Practice: Circulatory System (Mock Test 1 - Basic)
1. The organ system responsible for transporting nutrients, gases, and waste products in the body is the:
2. The fluid medium of the circulatory system is:
3. The muscular organ that pumps blood throughout the body is the:
4. The liquid part of the blood is called:
5. Red Blood Cells (RBCs) are also known as:
6. Which blood cells help in defending the body against infections?
7. The red color of blood is due to a pigment called:
8. Blood cells responsible for the clotting of blood are:
9. Blood vessels that carry blood AWAY from the heart are:
10. Blood vessels that carry blood TOWARDS the heart are:
11. The extremely thin-walled vessels where exchange of materials occurs are:
12. The human heart consists of how many chambers?
13. The upper chambers of the heart are known as:
14. The lower chambers of the heart are known as:
15. The wall that divides the left and right sides of the heart is the:
16. Which blood group is known as the "Universal Donor"?
17. Which blood group is known as the "Universal Recipient"?
18. The rhythmic contraction and relaxation of the heart is called:
19. An instrument used by doctors to listen to heartbeats is the:
20. Average adult human heartbeat at rest is approximately: