1. Oxygenated blood is present in

2. in close circulatory system blood is enclosed with in

3. The heart consists of

4. How many types of circulatory system

5. Pulmonary means circulations in

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

7. Circulatory system transports through which thing

8. How respiratory system takes place in fish

9. In animals transport of gases nutrients is called

10. Circulatory system transports through which thing

11. Fish is an example of

12. Types of closes circulatory system

13. In Fishes' heart ventricle pumps blood into

14. Which one is example of open circulatory system

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

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

17. Blood enters into right atrium through

18. Which type of circulation in vertebrates

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

20. systemic means circulation in