★ Breathing System Quiz
What is the percentage of nitrogen in inhaled air?
A. 78%
B. 21%
C. 0.04%
D. Variable
Select your answer:
Topics:
Non-infectious Disease Food Microbiology Glucose in the Body Human Brain Phlebotomy BMS Cell Cycle and Cancer Energy and Metabolism Human Anatomy Cardiovascular Adaptation Refresher Body Structures and Organ Systems Renal Replacement Therapies Multicellular Organisms Hair Evidence DNA Replication Skin Structure and GrowthOther quiz:
Nutrition › View60% of your brain is made from
A. water
B. fats
C. proteins
D. iron
Macromolecules and Enzymes › View
What does catalzye mean?
A. Speed Up
B. Slow Down
C. Put your head on your desk and not do any work…
D. Mr. Baxter