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  4. Presence of gills in the tadpole of frog indicates that

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Q. Presence of gills in the tadpole of frog indicates that

Chhattisgarh PMTChhattisgarh PMT 2006

Solution:

Presence of gills in the tadpole of frog indicates that frog evolved from gilled ancestors. According to Ernst Haeckel theory of Biogeneric, "ontogeny (development of embryo) is recapitulation of phytogeny" (the ancestral sequence).