Olive green colour of skin of frog is due to?
A. Xanthophores only
B. Melanophores only
C. Guanophores only
D. Due to combined effect of all of these
Answer:D
Olive green colour of skin of frog is due to?
A. Xanthophores only B. Melanophores only C. Guanophores only D. Due to combined effect of all of these