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Question 19N.3.HL.TZ0.a

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.HL.TZ0.a
Level HL Paper 3 Time zone TZ0
Command term Identify Question number a Adapted from N/A
a.
[Maximum mark: 1]
19N.3.HL.TZ0.a

The figures below show a human and a sheep brain.

[Source: Pearson Scott Foresman, donated to the Wikimedia Foundation,
https://commons.wikimedia.org/wiki/File:Convolution_he_-_sheep_and_human_brain.png]

The human brain is larger than the brain of many animals. Identify one other difference between the human brain and the brain of a sheep.

[1]

Markscheme

a. larger cerebral cortex in human brain ✔ Do not accept larger brain for human as it is in the stem.

b. higher folding in human brain
OR
increased surface area in human brain ✔

c. angle of spinal cord more vertical in human
OR
angle of spinal cord more horizontal in sheep ✔

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