Question 27
Question 27 of 40
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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
16. Reproduction
16.3. Sexual reproduction in plants

Discuss the potential effects of self-pollination and cross-pollination on a population, in terms of variation, capacity to respond to changes in the environment and reliance on pollinators

6. Plant nutrition
6.2. Leaf structure

State that most leaves have a large surface area and are thin, and explain how these features are adaptations for photosynthesis

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)