The diagram below is an illustration of the urinary tubule in a mammal. The part which contains the lowest concentration of urea is labelled? by Sunday | Nov 16 | Biology WAEC | 0 comments A. I B. II C. III D. IV Correct Answer: Option C C. III Users Also Read These:In the diagram below illustrating farm equipment,…The diagram below is an illustration of the urinary…The part labelled III in the diagram below is the…The diagram below illustrates the digestive tract of…Which of the following substances is greater in…