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:Which of the following statements on the use of…Both γ-rays and X-rays ________. Which of the…The sun rays reach the earth’s surface by?The main difference between x-rays and γ−rays lies in their?Cathode rays cause an object placed behind a…