Question

What is Excretion? How Excretion occurs in various groups of invertebrates.​

Answer 1

Answer:

Explanation:

Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin. This is in contrast with secretion, where the substance may have specific tasks after leaving the cell.

Aquatic invertebrates excrete ammonia by diffusion through the surface of their bodies, while terrestrial invertebrates, first convert ammonia to uric acid, which is then disposed. ... In unicellular organisms the process of excretion occurs through diffusion.