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Question 18M.3.HL.TZ1.c

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.HL.TZ1.c
Level HL Paper 3 Time zone TZ1
Command term Explain Question number c Adapted from N/A
c.
[Maximum mark: 2]
18M.3.HL.TZ1.c

Explain the process of neural pruning.

[2]

Markscheme

a. development of vertebrate nervous system results in overabundance of neurons/connections 

b. unused neurons/synapses are lost 

c. neurons destroy themselves by programmed/natural cell death/apoptosis 

d. removal of dendrites from neurons

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