Biology for IGCSE & O level - Variation And Selection (Section 1 - No. 2)
What is an advantage for the plant to develop flowers which has a perch, enabling them to push their beaks into the red flowers to drink nectar and at the same time pollinate the plant?
The birds avoid predators.
The plants gain a selective advantage.
The plants start competing among them.
The plants are better to disperse their seeds.
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The plants gain a selective advantage, so they will attract birds.