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Question
The legless condition that is observed in several groups of extant reptiles is the result of
Options:
A .  their common ancestor having been legless
B .  a shared adaptation to an arboreal (living in trees) lifestyle
C .  several instances of the legless condition arising independently of each other
D .  individual lizards adapting to a fossorial (living in burrows) lifestyle during their lifetimes
Answer: Option C

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