A) leucocytes
B) monocytes
C) lymphocytes
D) melanocytes
Correct Answer: D
Solution :
Skin colour in vetebrates is mainly due to the pigment melanin. In mammals, it occurs in special stellate (star ? shaped branched cells called melanocytes. Leucocytes are white blood corpuscles. Lymphocytes and monocytes are kinds of leucocytes.
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