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Date November 2016 Marks available 1 Reference code 16N.1.HL.TZ0.36
Level Higher level Paper Paper 1 Time zone TZ0
Command term Identify Question number 36 Adapted from N/A

Question

Fossil records show that black bears increased in size during the Ice Age and decreased in size with warmer temperatures. What type of selection do these changes in size represent?

A. Allopatric
B. Directional
C. Disruptive
D. Stabilizing

Markscheme

B

Examiners report

[N/A]

Syllabus sections

Additional higher level » Topic 10: Genetics and evolution » 10.3 Gene pools and speciation
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