Question

Discuss modification of visceral arches in birds.​

Answer 1

Answer:

There are typically 7 pairs of visceral arches in vertebrates which modify in different groups depending upon the presence or absence of gills and type of jaw suspension. ... These include the jaws. The splanchnocranium is formed from the splanchnic mesoderm in the wall of the pharynx between gill-clefts for their support.

Answer 2

There are typically 7 pairs of visceral arches in vertebrates which modify in different groups depending upon the presence or absence of gills and type of jaw suspension. ... These include the jaws. The splanchnocranium is formed from the splanchnic mesoderm in the wall of the pharynx between gill-clefts for their support.