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

2. In Fishes' heart ventricle pumps blood into

3. Types of closes circulatory system

4. Circulatory system transports through which thing

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

6. in close circulatory system blood is enclosed with in

7. Circulatory system transports through which thing

8. How respiratory system takes place in fish

9. Pulmonary means circulations in

10. In animals transport of gases nutrients is called

11. How many types of circulatory system

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

13. Oxygenated blood is present in

14. Which one is example of open circulatory system

15. Which type of circulation in vertebrates

16. Blood enters into right atrium through

17. systemic means circulation in

18. The heart consists of

19. Fish is an example of

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