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Which set of features marks a bird-pollinated flower?
ADull, strongly scented, opening at night
BBright, odourless, opening during the day
CDull, odourless, opening during the day
DBright, strongly scented, opening at night
Answer & Solution
Correct answer: B. Bright, odourless, opening during the day
1. Brightly coloured, odourless flowers that are open during the day are pollinated by birds.
2. Such flowers are usually sturdy and oriented so a bird can feed without tangling its wings.
3. They typically have a curved, tubular shape that admits the beak of the bird.
4. Pollen is deposited on the head and neck of the bird and carried to the next flower.
5. Strong scent with night opening describes bat and moth flowers rather than bird flowers.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 32 "Plant Reproduction", section 32.2 Pollination and Fertilization_
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