Question

Fill in the blanks:
1. In animals like Hydra, oxygen, nutrients and wastes are circulated in the body by________
2. In Amoeba, the transport of materials takes place by the simple process of _________
3. Blood transports________ which is absorbed in the small intestine to all parts of the body.
4. Throbbing of arteries is felt as________
5. _______help in the clotting of blood.​

Answer 1

Answer:

1= transportation

2=diffusion

3=nutrients

4=throbing sensation

5=platelets

Answer 2

Answer:

1) water vascular system

2) diffusion

3)transports

4)pulse

5)Along with these factors, calcium ions also play an important role in blood clotting. Prothrombin is present in the bloodstream in its inactive form. It is released by blood platelets and converted to its active form, thrombin, in response to an injury by an enzyme complex, thrombokinase.

Explanation:

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