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:The diagram below is an illustration of one of the…In the diagram below illustrating farm equipment,…The diagram below is an illustration of human sperm.…In the diagram below which shows the digestive tract…In the diagram of the human sperm below, the…