1. The forelimbs of the human, cat, whale, and bat contain homologous bones. The upper part has one bone, the lower part has two parallel bones, and the lowest part has a
number of small bones that can slide past one another. The butterfly wing contains no
bones.
A. Compare the structure and FUNCTION of the cat forelimb with the bat forelimb. Analyze
and evaluate the evidence for or against a common ancestor among these animals.
Indicate whether these are homologous or analogous structures.
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B. Compare the structure and function of the bat forelimb with the butterfly wing. Analyze
and evaluate the evidence for or against a common ancestor among these animals.
Indicate whether these are homologous or analogous structures.