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Gill slits present in embryonic stage of vertebrate represents A. Recapitulation B. Metamorphosis C. Biogenesis D. Organic evolution

Gill slits present in embryonic stage of vertebrate represents 
A. Recapitulation
B. Metamorphosis 
C. Biogenesis
D. Organic evolution

Grade:12th pass

2 Answers

Arun
25750 Points
4 years ago
According to biogenetic law or recapitulation, each and every organism in its path of development undergoes similar phases as its ancestors. Tadpole larva, which is a part of the life cycle of frog resembles a fish. Fish is the ancestor of the frog. This example explains well about the biogenesis or the biogenetic law.
 
option C wi correct
 
Vikas TU
14149 Points
4 years ago
The theory of recapitulation' or 'Biogenetic law', propounded by Haeckel states that an individual organism in its development (ontogeny) tends to repeat the stages passed through by its ancestors (phylogeny). During the life history of frog, tadpole larva resembles fishes, the ancestors of Amphibia.  The presence of gill clefts in venebrate embryo provides a strong evidence in support of organic evolution 
So, Option C is correct 

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