Which is not a metabolic waste in humans? A) carbon dioxide
B) oxygen
C) salt
D) urea
E) water

Which of the following is an argument against buying local fruits and vegetables?

What is a possible consequence of abusing intravenous drug such as heroin? a-hiv transmission b-alcohol poisoning c-improving appetite d-lung cancer

Subjective observations are not used under diagnosis, but objective observations are. true or false