1. Which one is example of open circulatory system

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

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

4. Fish is an example of

5. In Fishes' heart ventricle pumps blood into

6. In animals transport of gases nutrients is called

7. Pulmonary means circulations in

8. The heart consists of

9. Oxygenated blood is present in

10. Types of closes circulatory system

11. systemic means circulation in

12. in close circulatory system blood is enclosed with in

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

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

15. How many types of circulatory system

16. Blood enters into right atrium through

17. Which type of circulation in vertebrates

18. Circulatory system transports through which thing

19. How respiratory system takes place in fish

20. Circulatory system transports through which thing