Question

what structure are formed by modification of branchial arches in tetrapods​

Answer 1

Here is your Answer-:

The first, most anterior Pharyngeal gives rise to the oral jaw. The second becomes hyoid and jaw support.

Answer 2

Hope it's help you...!!!✌️❣️

☞ The first, most anterior pharyngeal arch gives rise to the oral jaw. The second arch becomes the hyoid and jaw support. In fish, the other posterior arches contribute to the branchial skeleton, which support the gills; in tetrapods the anterior arches develop into components of the ear, tonsils, and thymus. ☜