Protection of the body cells of mammals against ultra-violet rays of the sun is brought about by? by Sunday | May 14 | Biology WAEC | 0 comments A. keratin B. melanin C. sebum D. scales Correct Answer: Option B B. melanin Users Also Read These:Cathode rays causes an object placed behind a…The difference between X-rays and gamma rays is that?A beam consisting of α-particles. β-particles and…The sun in Donne's The Sun Rising is depicted…Which of the following statements on the use of…