Free Thermoregulation MCQs with Answers
45 Thermoregulation MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Thermoregulation maintains body temperature through negative feedback controlled mainly by the hypothalamus. It covers vasodilation and vasoconstriction, sweating, shivering, changes in metabolic heat production and behavioural responses, while distinguishing heat loss by radiation, conduction, convection and evaporation from temperature regulation itself.
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45 questions · page 3 of 3
- A. Lateral ventricle
- B. Thalamus
- C. Spinal cord
- D. Hypothalamus
Explanation: The hypothalamus is a section of the brain that controls thermoregulation.
Correct answer: Hypothalamus- A. Medulla
- B. Medulla oblongata
- C. Body fluid
- D. Hypothalamus
Explanation: The hypothalamus in the brain is the master switch that works as a thermostat to regulate the body's core temperature.
Correct answer: Hypothalamus- A. Salamander
- B. Great white shark
- C. Polar bear
- D. Butterfly
Explanation: Polar bears are classified as endothermic animals because they can regulate their body temperature internally, independent of external…
Correct answer: Polar bear- A. Receptor, Regulators, Effectors
- B. Receptors, Integrator, Effectors
- C. Sensors, Brain, Effectors
- D. All of the above
Explanation: The correct answer is Receptors, Integrator, Effectors. These are the three core components of a homeostatic mechanism:Receptor: Detects…
Correct answer: Receptors, Integrator, Effectors- A. -9oC
- B. 10oC
- C. -10oC
- D. 8.0oC
Explanation: Arctic snow fleas are tiny organisms that have adapted to survive in freezing temperatures as low as -10°C.
Correct answer: -10oC