What do mean by excretion?

Excretion is the process by which organisms expel metabolic waste products and other toxic substances from their body. 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. Excretion is an essential process in all forms of life.

What is excretion in human body?

Excretion in Humans. Excretion is the process where all the metabolic wastes are removed from the body. Excretion in humans is carried through different body parts and internal organs in a series of processes. Diffusion is the most common process of excretion in lower organisms.

[caption id="attachment_488" align="aligncenter" width="474"] Excretion in Animals[/caption]   [caption id="attachment_486" align="aligncenter" width="441"] Excretion in Human[/caption]

Why is excretion important?

Excretion is the process of removal of toxic waste from the body. It is done to prevent accumulation of harmful substances in the body. Plants eliminate harmful gases, stores certain wastes and by diffusion releases metabolic waste in the soil.

[caption id="attachment_487" align="aligncenter" width="564"] Human Urinary system[/caption]

Where is excretion?

Excretion is the proces s of removing wastes and excess water from the body. It is one of the major ways the body maintains homeostasis. Although the kidneys are the main organs of excretion, several other organs also excrete waste s. They include the large intestine, liver, skin, and lungs.