Proteus onguinus is an example f or

Options

A. circannual rhythms
B. effect of light pigmentation
C. phototaxis
D. photokinesis

Answer

B

Explanation

Proteus anguinus is a cave salamander (a rare amphibian). It is an example for effect of light pigmentation. They have generally depigmented skin, but its skin retains the ability to produce melanin. When exposed to light, it will gradually turn dark. Its skin lacks pigment, giving its body a white apperance. It also has a pink head due to blood capillaries near the skin and its translucency shows contours of the internal organs.