Select your answer:
Topics:
Smoking Related Diseases DNA Structure and Function Blood Pressure and Blood Vessels Bacteria Structure Defence against Infectious Diseases Pathology Endocrine Muscle Anatomy First Aid Fats And Oil Aerobic- Cardio Respiratory Endurance Oxygenation Respiratory and Circulatory Hospital Departments Neurology Muscle & Nerve TissueOther quiz:
Organic Compounds, Minerals and Enzymes › ViewNitrogen is vital to life because it is a key component of:
A. proteins
B. laughing gas
C. carbohydrates
D. lipids
Microbiology › View
Which is a distinction between an epidemic and a pandemic?
A. the symptoms of the disease
B. the geographical area affected
C. the species of organisms infected
D. the season in which the disease spreads