CourseCourseConceptConceptDocsDocuments

IB Biology HL A3.2.2 Hl Difficulties with Traditional Hierarchy Questions

Analyse how fixed ranks and morphological similarity can obscure evolutionary relationships and make classification difficult.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Arrange taxa in hierarchical order from genus through family, order, class and higher groups.
  • Explain how fixed taxonomic ranks and morphological similarity can be arbitrary or misleading when lineages diverge or converge.
  • Use reclassification and shared-ancestry evidence to evaluate evolutionary relationships within a taxonomy.

IB Biology HL A3.2.2 Hl Difficulties with Traditional Hierarchy Questions question 1

[Maximum number: 1]

Which is the hierarchy of taxa in order of increasing numbers of species?

A

genus, family, order, class

B

class, order, genus, family

C

genus, family, class, order

D

class, order, family, genus

All question bank results loaded