Activity 3: Analogous or Homologous?
Objectives:
 Distinguish homologous structure from analogous structure.
 Explain the relevance of comparative anatomy as evidence of evolution.
Materials: paper and pen
Direction: Tell whether the structure is a homologous or analogous, Write A on the middle
column of the table if the structure is analogous and H if homologous. Provide short
explanation to support your answer.
Structure Classification Explanation
Human arm Whale flipper
Human arm Alligator forelimb
Bat wing Butterfly wing
Bird wing Butterfly wing
Guide Questions:
1. How do the structures of organisms’ body be used as evidence of evolution?
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2. Give another example of homologous or analogous aside from the given on the table.
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