1. Fish is an example of

2. Circulatory system transports through which thing

3. in close circulatory system blood is enclosed with in

4. Circulatory system transports through which thing

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

6. Blood enters into right atrium through

7. Pulmonary means circulations in

8. In Fishes' heart ventricle pumps blood into

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

10. Which type of circulation in vertebrates

11. The heart consists of

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

13. How respiratory system takes place in fish

14. How many types of circulatory system

15. In animals transport of gases nutrients is called

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

17. Types of closes circulatory system

18. Which one is example of open circulatory system

19. Oxygenated blood is present in

20. systemic means circulation in