Which of the following substances when lost from the body of a mammal will not be returned to the ecosystem? by Sunday | Nov 24 | Biology WAEC | 0 comments A. Sweat B. Urea C. Heat energy D. Carbon dioxide Correct Answer: Option C C. Heat energy Users Also Read These:The statement 'Heat lost by the hot body equals that…According to Newton's law of cooling, the heat…Which of the following depicts the external features…Water and salts are both lost from the human body in?Which of the following entries is made damaged goods…