Scelta multipla
Which of the following characteristics allowed early gnathostomes to become successful predators?
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1. Introduction to Biology
Natural Selection and Evolution
Scelta multipla
What is an adaptation that helps hummingbirds obtain food?
A
Long, specialized beaks for accessing nectar
B
Sharp claws for climbing trees
C
Webbed feet for swimming
D
Thick fur for insulation
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Identify the primary food source for hummingbirds, which is nectar from flowers.
Consider the physical traits that would aid in accessing nectar deep within flowers.
Evaluate the options given: long, specialized beaks, sharp claws, webbed feet, and thick fur.
Understand that long, specialized beaks are an adaptation that allows hummingbirds to reach nectar in flowers, which is their main food source.
Conclude that the adaptation of long, specialized beaks is specifically suited for obtaining nectar, unlike the other options which serve different purposes.
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