The six brachial arches, which form the support structures between the gill in the fish, develop into: (list 6 structures)

ear, tonsils, thymus, face, neck, oropharyns.

Explanation:

The brachial arches are the first structures, when the living thing is starting to develop, remember that with the passing of time, the cell structures starts to specialize depending the needs of the body. Remember this system starts to grow among the fourth week and serves as the building blocks of the face - brain area.