Question
Wed February 27, 2013 By:
 

Are the following homologous or analogous? Why? a) Flippers of dolphin and whale b) Flippers of penguin and whale

Expert Reply
Wed February 27, 2013
a) Flippers of dolphin and whale are homologous. They are considered homologous structures because they have a similar underlying anatomy. They are similar and share common traits.
b) Flippers of penguin and whale are analogous structures that are not homologous, as they arise from different tissues.
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