Medical Quiz

Circulation and Excretion Quiz

Urea is a product of the breakdown of proteins and nucleic acids. Where is it produced in the body?

A. liver

B. kidney

C. lung

Select your answer:
A  B  C  D  E 


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Other quiz: Brain

What part of the eye sits on the outer surface of the cornea and lines the eyelids. This structure produces mucous

A. iris

B. lens

C. retina

D. conjunctiva