Biology Evolution BUMHS 2022
PMDC Verified Question 35 of 47
Who held to the concept of unity of life?
A
Aristotle
B
Darwin
C
Lamarck
D
Alfred
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Darwin
Concept:

The "unity of life" is a foundational evolutionary concept describing the shared ancestry of all living organisms.

Solution:

  • Charles Darwin emphasized the "unity of life" in his theory of descent with modification.
  • He proposed that all organisms are related through descent from a common ancestor that lived in the remote past.
  • He visualized the history of life as a branching tree, showing how diverse species share common biological characteristics due to shared lineages.


Why other options are incorrect:

  • Aristotle: Believed species were fixed and arranged them on a strict hierarchy (Scala Naturae).
  • Lamarck: Focused on linear progression toward perfection rather than a unified branching descent from a single ancestor.

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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