Question

State two reason why excretion is necessary in animals

Answer 1

Explanation:

the unwanted digested food materials should be removed out of the body

also the poisonous waste substances from the blood are removed

Answer 2

Answer:

i. Because when animal eat food the then unnecessary material is thrown out by excretion system if it not present the wasted material collected in the animal body and damaged the body internal part as it will die.

ii. Some animals have a very limited number of sweat pores and they discharge excess body temperature through panting.