1. The heart consists of

2. The largest artery which supplies blood towards the body is called

3. Pulmonary means circulations in

4. How respiratory system takes place in fish

5. Circulatory system transports through which thing

6. Blood enters into right atrium through

7. Circulatory system transports through which thing

8. Types of closes circulatory system

9. in close circulatory system blood is enclosed with in

10. In animals transport of gases nutrients is called

11. In Fishes' heart ventricle pumps blood into

12. Circulation of blood takes place in unicellular organisms through the

13. Oxygenated blood is present in

14. Which one is example of open circulatory system

15. Which type of circulation in vertebrates

16. Close circulatory system is More efficient and complicated as compare of

17. systemic means circulation in

18. Fish is an example of

19. Movement of substances from higher concentration to lower is called

20. How many types of circulatory system