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Q.
Different colour of frogs skin is controlled by
Jharkhand CECEJharkhand CECE 2014
Solution:
Basically Rana has three type of pigmentations melanophore, ridophore, and xanthophores. These chromatophore are controlled by the frogs central nervous system and hormones. When needed frog could put these pigment into use. They could produce a wide variety of colours/shades from brown to grey-green, etc.