Difficulty: Easy
Correct Answer: Bat
Explanation:
Introduction / Context:Biological classification questions frequently contrast classes such as birds and mammals.
Given Data / Assumptions:
Concept / Approach:Group by taxonomic class rather than ability to fly.
Step-by-Step Solution:
Cuckoo → bird (lays eggs, feathers, beak).Crow → bird.Parrot → bird.Bat → mammal (fur, live young, mammary glands).Verification / Alternative check:Although both birds and bats fly, their anatomy (feathers vs skin membranes), reproduction, and classification differ.
Why Other Options Are Wrong:They share the same class (Aves).
Common Pitfalls:Equating “flies” with “bird.” Flight is not exclusive to birds.
Final Answer:Bat is the odd term (a mammal).
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