Biology Homeostasis PMDC Conceptual Practice
PMDC Verified Question 25 of 99
Humans maintain a constant internal core body temperature through metabolic heat production because they are:
A
Ectothermic
B
Poikilothermic
C
Heterothermic
D
Endothermic
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Endothermic
Concept: Thermal classification of organisms.

Solution: Endothermic organisms generate thermal energy internally via cellular respiration and metabolic processes to stabilize internal body temperature.

Why other options are incorrect:
  • Option A & Option B: Ectothermic and poikilothermic organisms rely on external environmental heat sources.

  • Option C: Heterotherms fluctuate between self-regulation and poikilothermy (e.g., hibernating species).

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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