18.3. Selection
A subsection of Biology, 0610, through 18. Variation and selection
Listing 10 of 88 questions
A species of insect usually has pale-coloured wings. This helps to camouflage them on pale-coloured tree trunks. A few of the insects in this species have darker coloured wings. After a number of years the tree trunks become darker in colour due to environmental changes. The insects with dark-coloured wings become more common than insects with pale-coloured wings in this species. Which process causes this change in the proportion of insects with dark-coloured wings?
0610_w21_qp_11
MCQ
2021
Paper 1, Variant 1
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Questions Discovered
88