The process of expelling waste out of the body from an organism is called
A
Digestion
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B
Ingestion
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C
Excretion
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D
Reflex action
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Solution
The correct option is C Excretion
The process of expelling waste from the organism is called excretion. Ammonia, urea and uric acid are the major forms of nitrogenous wastes excreted by the animals. Ammonia is the most toxic form and requires a large amount of water for its elimination, whereas uric acid, being the least toxic, can be removed with a minimum loss of water.
The human excretory system consists of a pair of kidneys, ureter, urinary bladder and urethra.