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|Published on: Nov 16|Categories: 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, the part labelled II is the?The diagram below is an illustration of farm…The diagram below is an illustration of the urinary…Using the diagram, the part labelled IV is for?The part labelled II is this diagram is?SEE ALSO Oil is sprayed over stagnant water in which mosquitoes breed in order to?