Which of the following is the function of kidney in frog?

Options

A. Dorsal lip of gastrula
B. Grey crescent area of frog
C. Chorda-mesoderm of gastrula
D. All of these

Answer

D

Explanation

According to Spemann, dorsal lip induces to form neural tube and the neural tube then induces to form the eyes. The dorsal lip is composed of chorda – mesoderm and as it primary act as inducer so he named the dorsal lip or chordamesoderm as primary organizers.