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The Excretory system — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyThe Excretory system1 Mark
MCQ
Excretion means:
  • A
    The process of removal of digestive waste from the body.
  • B
    The process of removal of undigested food from the body.
  • ✓
    The process of removal of nitrogenous wastes from the body.
  • D
    All of the above
✓

Answer

Correct option: C.
The process of removal of nitrogenous wastes from the body.
(c) The process of removal of nitrogenous wastes from the body.
Explanation:
Excretion is specifically the process by which the body removes metabolic wastes (chemical wastes), such as urea and carbon dioxide.
It does not include the removal of digestive waste or undigested food, which are processes of egestion and defecation, respectively.

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