Home » Biology » Which of the following substances when lost from the body of a mammal will not…Which of the following substances when lost from the body of a mammal will not… Which of the following substances when lost from the body of a mammal will not be returned to the ecosystem? A. Sweat B. Urea C. Heat energy D. Carbon dioxide Correct Answer: Option C Explanation Related Posts Which of the following methods of reproduction is common to Paramecium and Amoeba? In the diagram, the part labelled I is the The basic functional unit of the kidney is the Maximum and minimum thermometer is used for measuring Accommodation of the human eye is best described as the What is the function of the contractile vacuole in paramecium?