16.3.24 — Vector Adaptations: Past Paper Synthesis
15 Questions · 4 Marks Each · Sections A–C · Stigma · Pollen · Anthers
Compare the structure and position of the stigma in wind-pollinated flowers with those of insect-pollinated flowers.
Explain how the position of the stigma in a wind-pollinated flower is an adaptation to its method of pollination.
Describe two structural differences between the stigma of a wind-pollinated flower and the stigma of an insect-pollinated flower, and for each difference explain the advantage it provides.
A student claims that both wind-pollinated and insect-pollinated flowers have stigmas designed to maximise contact with pollen. Evaluate this claim using structural evidence.
Suggest why a plant that relies on wind pollination would be at a disadvantage if its stigma was positioned deep inside a closed flower.
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