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

2. Circulatory system transports through which thing

3. Blood enters into right atrium through

4. Circulatory system transports through which thing

5. Oxygenated blood is present in

6. The heart consists of

7. Types of closes circulatory system

8. Which type of circulation in vertebrates

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

10. In Fishes' heart ventricle pumps blood into

11. in close circulatory system blood is enclosed with in

12. Fish is an example of

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

14. How respiratory system takes place in fish

15. Which one is example of open circulatory system

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

17. systemic means circulation in

18. How many types of circulatory system

19. In animals transport of gases nutrients is called

20. Pulmonary means circulations in