Question 35
Question 35 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
18. Variation and selecti...
18.3. Selection

Outline how selective breeding by artificial selection is carried out over many generations to improve crop plants and domesticated animals and apply this to given contexts

20. Human influences on e...
20.4. Conservation

Explain the risks to a species if its population size decreases, reducing genetic variation (knowledge of genetic drift is not required)