Chapter 22

Descent with Modification: A Darwinian View of Life

Understand the foundational theory of biology. Master Darwinian evolution - the unifying theme connecting all life sciences.

5 Hours

Olympiad 5/5

Intermediate

NEETRequired

MCATRequired

AP BiologyRequired

IB BiologyRequired

USABO

5/5

BBO

5/5

INBO

5/5

IBO

5/5

Key Topics Covered

Darwin and the voyage of the Beagle

Natural selection mechanism

Evidence for evolution

Homology and fossil record

Biogeography and adaptation

Explain natural selection mechanism

Evaluate evidence supporting evolution

Distinguish homology from analogy

Connect biogeography to evolutionary patterns

Yes! Evolution is a dedicated chapter in NEET carrying 5-7% weightage. Darwin theory and evidence are frequently tested.

Olympiads test deeper understanding of selection types, adaptation mechanisms, and interpreting evolutionary evidence.

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