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 illustrates the digestive tract of…From the illustration of farm implements below, the…When a person’s urine contains a high concentration…Below is the illustration of farm implements. The…The diagram below is an illustration of farm…