IB Biology HL 3.1.10 Promoting cross-pollination Question Bank
Practise IB Biology HL 3.1.10 by analysing floral mechanisms that promote cross-pollination over self-pollination.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Analyse how flower structure and timing make cross-pollination more likely.
- Evaluate reproductive adaptations that reduce selfing and increase genetic mixing.
D3.1.10—Promoting cross-pollination question 1
[Maximum number: 1]
Flowering plants can use either self-pollination or cross-pollination when they carry out sexual reproduction. Which plants are most likely to cross-pollinate?
A
Plants that are hermaphrodites
B
Plants whose anthers and stigmas mature at the same time
C
Plants with flowers that have much longer stamens than stigmas
D
Plants that are either male or female
D
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