- A Flower shapes that vary largely at random with little underlying functional correlation overall under most conditions encountered
- B Morphological matching between flower structure and pollinator anatomy (orchid-bee coevolution, yucca-yucca moth mutualism)
- C Generalist pollinators that visit nearly every available flower species with little discrimination as frequently observed in practice
- D Plants that rely mainly on ambient wind currents for transferring pollen between flowers in many documented cases according to conventional understanding
Correct answer: B. Morphological matching between flower structure and pollinator anatomy (orchid-bee coevolution, yucca-yucca moth mutualism)
Explanation: Flower-pollinator coevolution: plants and pollinators evolve together. Darwin predicted the Malagasy star orchid required a moth with 30 cm tongue to reach nectar -- confirmed 100 years later.
Concept context
Flower structure, pollination, double fertilization, and seed/fruit development — the highest-scoring Class 12 biology chapter in NEET.
Read the full Sexual Reproduction in Flowering Plants notes →