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IB Biology HL A3.2.4 Hl Clades Questions

Define clades precisely, read common ancestry from branching points and use shared derived characteristics to classify organisms.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Define a clade as a common ancestor and all of its descendants.
  • Identify clades, closest relatives and common ancestors from branching points on a cladogram.
  • Use shared derived or diagnostic characteristics, including molecular evidence, to decide which organisms belong in a clade.

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Study A3.2.4 (HL)—Clades conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL A3.2.4 Hl Clades Questions question 1

[Maximum number: 1]

Define clade.

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