Question

What is excretion? How do unicellular organisms remove their wastes?

Answer 1

removing of wastes from the body
by excretory process

Answer 2

(in living organisms and cells) the process of eliminating or expelling waste matter.
Unicellular organisms like ameoba excrete through the process of diffusion . Diffusion occurs when the particles spread. They move from higher concentration to lower concentration. ... Unicellular organisms usually remove waste through osmosis.