Question

Define excretion.
Name the basic filtration unit present in the kidney.​

Answer 1

Answer:

Excretion is the process by which organisms remove harmful substances from their body

Basic filtration unit = nephron

Explanation:

Answer 2

Answer:

Excretion is the biological process by which an organism remvoes harmful metabolic wastes from the body . The mode of excretion is completely different in unicellular ( single celled ) and multicellular (many celled) organism s