The presence of gill slits in the embryos of all vertebrates supports the theory of `:`

The presence of gill slits in the embryos of all vertebrates support the theory of

The presence of gill slits, in the mbryos of all vertebrates, supports the theory of

The presence of gill slits, in the mbryos of all vertebrates, supports the theory of

Presence of gill slits in the embryo of all vertebrates supports the theory of:

The presence of embryonic features such as tail and gill slits, in the embryo of all vertebrates supports the theory of

Taking the example of gill clefts mention how the embryological evidence supports the theory of organic evolution.