Question

17. Read the following and answer any four questions from
17(i) to 17(v).
We need a pumping organ to push blood around the body, a
network of tubes to reach all the tissues and a system in
place to ensure that this network can be repaired if
damaged.
1)
Arteries carry oxygenated blood except...............

2).........ensure that blood does not flow backward
when the Artria on ventricles contract.
3) Some animals like amphibians or many reptiles
have
...........chambered heart:
4) The smallest vessels have walls which are one cell
thick are called...........
5) ............... Is an another type of fluid also involved in
transportation

​

Answer 1

Answer:

Explanation:

I didn'tunderstand this question

Answer 2

Answer:

1) Pulmonary artery

3) 3 chambered

4) Arteries

I think It's help you