Edexcel IGCSE Biology 3.3 flower structure and pollination

Practise flower pollination by comparing floral structures, identifying diagram labels and planning pollen or wind-speed investigations.

Exam points

Compare wind- and insect-pollinated flowers using petals, stamens, stigmas and pollen.
Use labelled flower diagrams to identify anthers, style, male parts and pollen release sites.
Design wind-speed pollen investigations with controlled flower type, repeats and counts.

[Maximum number: 4]

A species of grass has a diploid chromosome number of 12.

The diagram shows a flower from the grass plant.

Explain two ways this flower is adapted for wind pollination.
1

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