Tamilnadu BoardEnglish MediumSTD 12Bio ZoologyEvolution.3 Marks
Question
“Ontogeny recapitulates phylogeny” – comment on the statement with example.
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Answer
The embryonic stages of a higher animal resemble the adult stage of its ancestors. Appearance of pharyngeal gill slits, yolk sac and the appearances of tail in human embryos are some of the examples.
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