Explain excretion in brief

1.	Explain excretion in brief
Answer» For example, in mammals urine is expelled through the urethra, which is part of the excretory system. In unicellular organisms, waste products are discharged directly through the surface of the cell. During life activities such as cellular RESPIRATION, several chemical reactions take place in the body. These are known as metabolism. These chemical reactions PRODUCE waste products such as carbon dioxide, water, salts, UREA and URIC acid. Accumulation of these wastes beyond a level inside the body is HARMFUL to the body

Answer»

For example, in mammals urine is expelled through the urethra, which is part of the excretory system. In unicellular organisms, waste products are discharged directly through the surface of the cell.

During life activities such as cellular RESPIRATION, several chemical reactions take place in the body. These are known as metabolism. These chemical reactions PRODUCE waste products such as carbon dioxide, water, salts, UREA and URIC acid. Accumulation of these wastes beyond a level inside the body is HARMFUL to the body

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