Multiple Choice
The skeletons and fossils shown in the previous illustration provide evidence for which biological process?
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1. Introduction to Biology
Natural Selection and Evolution
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Which beak shape is best suited for reaching into long, narrow flowers?
A
Hooked and sharp
B
Short and thick
C
Wide and flat
D
Long and slender
Verified step by step guidance1
Understand the relationship between beak shape and feeding habits: Birds have evolved different beak shapes to suit their feeding needs. Beak shape is often adapted to the type of food the bird consumes and the environment in which it lives.
Analyze the structure of long, narrow flowers: These flowers typically have nectar located deep within their tubular shape, requiring a specialized tool to access it.
Evaluate the beak shapes provided: Hooked and sharp beaks are suited for tearing flesh or gripping prey, short and thick beaks are ideal for cracking seeds, and wide and flat beaks are adapted for filtering food from water.
Consider the function of a long and slender beak: This shape is ideal for reaching deep into narrow spaces, such as the tubular structure of long, narrow flowers, to access nectar.
Conclude that the long and slender beak is the best adaptation for feeding on nectar from long, narrow flowers, as it allows the bird to reach the nectar efficiently without damaging the flower.
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