The process that regulates body temperature by sweating and shivering is an example of: MCQ with Answer and Explanation

The process that regulates body temperature by sweating and shivering is an example of:
A. Feedforward control
B. Circadian rhythm
C. Negative feedback
D. Positive feedback
Answer: Option C
Solution (By JKSSB Mock Tests)
Thermoregulation uses negative feedback mechanisms: when body temperature rises, sweating and vasodilation cool the body; when it falls, shivering and vasoconstriction generate and conserve heat. Negative feedback counteracts deviations from a set point. Positive feedback amplifies a change (e.g., labor contractions).

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Practice More Biology Questions

Question #1
Biological Oxygen Demand (BOD) is a measure of:
A. The amount of oxygen consumed by fish
B. The amount of oxygen produced by algae
C. The amount of oxygen required by bacteria to decompose organic matter in water
D. The total dissolved oxygen in a water body

Correct Answer: Option C


Explanation:
Biological Oxygen Demand (BOD) is a measure of the amount of dissolved oxygen required by aerobic microorganisms (mainly bacteria) to decompose the organic matter present in a given volume of water sample at a specific temperature over a specific time (usually 5 days at 20°C). High BOD indicates high levels of organic pollution, which depletes oxygen for aquatic life.

This question belongs to: Science Biology
Question #2
The silkworm, Bombyx mori, feeds exclusively on the leaves of which plant during its larval stage?
A. Castor
B. Eucalyptus
C. Mulberry (Morus alba)
D. Teak

Correct Answer: Option C


Explanation:
The domesticated silkworm, Bombyx mori, is a monophagous insect, meaning it feeds almost exclusively on the fresh leaves of the mulberry plant (primarily Morus alba). The quality and quantity of silk produced are directly dependent on the quality of the mulberry leaves consumed by the larvae. While tasar silkworms feed on oak and castor, the common mulberry silkworm requires Morus alba.

This question belongs to: Science Biology
Question #3
The hormone that inhibits gastric secretion and motility is:
A. Secretin
B. Cholecystokinin
C. Gastric inhibitory peptide (GIP)
D. Gastrin

Correct Answer: Option C


Explanation:
GIP (glucose-dependent insulinotropic peptide), released by the small intestine, inhibits gastric acid secretion and motility, and stimulates insulin release. Gastrin stimulates acid secretion, secretin stimulates bicarbonate, CCK stimulates gall bladder contraction. GIP was originally named for its gastric inhibitory effect.

This question belongs to: Science Biology