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Flowers pollinated by flies typically show which combination?
ABright colours and a sweet fruity scent
BDull colours and a sweet fruity scent
CBright colours and a smell of rotting flesh
DDull colours and a smell of rotting flesh
Answer & Solution
Correct answer: D. Dull colours and a smell of rotting flesh
1. Many flies are attracted to flowers with a decaying smell or an odour of rotting flesh.
2. Those flowers usually have dull colours such as brown or purple.
3. So the combination is dull colouring with a carrion odour.
4. They still produce nectar, which supplies energy, while the pollen supplies protein.
5. Bright colouring with a sweet scent is the bee and butterfly pattern, which is the contrast being tested.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 32 "Plant Reproduction", section 32.2 Pollination and Fertilization_
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