1. Which type of circulation in vertebrates

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

3. In animals transport of gases nutrients is called

4. Types of closes circulatory system

5. Pulmonary means circulations in

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

7. Which one is example of open circulatory system

8. How many types of circulatory system

9. In Fishes' heart ventricle pumps blood into

10. Blood enters into right atrium through

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

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

13. How respiratory system takes place in fish

14. Circulatory system transports through which thing

15. systemic means circulation in

16. Fish is an example of

17. Oxygenated blood is present in

18. in close circulatory system blood is enclosed with in

19. Circulatory system transports through which thing

20. The heart consists of