DP Biology (first assessment 2025)

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Question 21N.1A.SL.TZ0.20

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Date November 2021 Marks available [Maximum mark: 1] Reference code 21N.1A.SL.TZ0.20
Level SL Paper 1A Time zone TZ0
Command term Question number 20 Adapted from N/A
20.
[Maximum mark: 1]
21N.1A.SL.TZ0.20

The pentadactyl limbs of mammals, birds, reptiles and amphibians are examples of which kind of structures?

A. Homologous

B. Analogous

C. Vestigial

D. Convergent

[1]

Markscheme

A

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