DP Biology (first assessment 2025)

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Question 19M.1A.SL.TZ1.26

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ1.26
Level SL Paper 1A Time zone TZ1
Command term Identify Question number 26 Adapted from N/A
26.
[Maximum mark: 1]
19M.1A.SL.TZ1.26

Which feature of capillaries distinguishes them from arteries and veins?

A. Narrow diameter

B. Valves to prevent backflow

C. Thick muscular walls

D. Elastic tissue 

[1]

Markscheme

A

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