1. How many types of circulatory system

2. Circulatory system transports through which thing

3. In Fishes' heart ventricle pumps blood into

4. Which type of circulation in vertebrates

5. Circulatory system transports through which thing

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

7. In animals transport of gases nutrients is called

8. The heart consists of

9. in close circulatory system blood is enclosed with in

10. Types of closes circulatory system

11. How respiratory system takes place in fish

12. Pulmonary means circulations in

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

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

15. Which one is example of open circulatory system

16. systemic means circulation in

17. Blood enters into right atrium through

18. Oxygenated blood is present in

19. Fish is an example of

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