Which of the following is not a function of sebum?
Softens and lubricates skin and hair
Prevents the loss of water from the skin
Kills bacteria on the surface of the skin
Help in the excretion of excess water and salts
The sebum does not help in the excretion of water and salts.
Which organ collects and excretes urea, excess salt and water?
Question 8
Which of the following is an incorrect statement about excretion? (a) Excretion takes place in plants. (b) Excretion takes place both in plants and animals. (c) Excretion is the process of getting rid of excess water only. (d) Secretion is one method of excretion.