Which of the following traits in humans is an example of physiological variation? by Sunday | Dec 23 | Biology WAEC | 0 comments A. skin colour B. fingerprint C. tongue rolling D. height Correct Answer: Option C – tongue rolling Users Also Read These:Which of the following is an example of variation?Which of the following human traits in a class of…Which of the following is an example of continuous…Which of the following traits in humans can be…Which of the following is an example of…