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Homeostasis
5 Class 10 Biology questions with answers and explanations.
Printable worksheet with answer key
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Maintaining a stable internal environment is called:
- 1 Excretion only
- 2 Growth
- 3 Digestion
- 4 Homeostasis
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The main excretory organ in humans is the:
- 1 Kidney
- 2 Heart
- 3 Liver
- 4 Pancreas
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Correct answer: Kidney
Kidneys remove urea and excess water from the blood.
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The functional unit of the kidney is the:
- 1 Nephron
- 2 Neuron
- 3 Alveolus
- 4 Villus
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Urea is formed in the:
- 1 Kidney
- 2 Stomach
- 3 Lungs
- 4 Liver
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Correct answer: Liver
The liver makes urea from excess amino acids and the kidneys remove it.
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Sweating helps to:
- 1 Digest food
- 2 Cool the body
- 3 Warm the body
- 4 Make urea
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Correct answer: Cool the body
Evaporation of sweat removes heat from the body.