What is the difference between excretion, egestion, and secretion?

Question

What is the difference between excretion, egestion, and secretion?

Answer 1

Excretion - eliminating wastes. So it's waste products that are harmful to the organism that are being shipped out, because they're useless and will only harm the organism if they stay.

"Secretion - the process of segregating, elaborating, and releasing chemicals from a cell, or a secreted chemical substance or amount of substance. In contrast to excretion, the substance may have a certain function, rather than being a waste product." (1)

"Egestion is the discharge or expulsion of undigested material (food) from a cell in case of unicellular organisms, and from the digestive tract via the a**s in case of multicellular organisms.

It should not be confused with excretion, which is getting rid of waste formed from the chemical reaction of the body, such as in urine, sweat, etc. " (2)

Answer 2

oh, u can just go to wikipedia and search, they'll give u straight answers without havin to waste too much time looking for it, or a dictionary might help too:)