Question

what is the need of excretion?​

Answer 1

Answer:

There are lots of reasob for need of excretion, lets understand by it simple example - if any one eat 2kg per day then in 10. year what will u see in weight it becomes unmeasurable and how the person will be able to move .

Hope u understand what i said to u

Answer 2

Answer:

Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell. So it is needed.