Question

Q.2. Give reasons:
1. Transportation of substance in living organisms.
2.
The heart gives away impure blood through an artery.
3.
The colour of blood is red.​

Answer 1

1. due to heart pulse
2. due to chemical reaction called respiration
3. due to presence of RBC

Answer 2

Answer:

1.Substances like food,oxygen etc needs to be transported around the body as all organs require certain substances to do a certain task like muscles require food and oxygen to use energy and not only muscles require these but all organs,tissues,cells etc require food and oxygen.

2.it gives away to lungs to oxygenated.

3.due to concentration of RBC.

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