Topics: Breathing System Quiz
What is the percentage of oxygen in exhaled air?
A. 78%
B. 14%
C. 5%
D. Variable
Select your answer:
Topics:
Dermatology Vocabulary Forensic Odontology Types of Doctors Stem Cells & Cell Differentiation Radiation and Health Nutrient Cycling ICU Skeletal System Vocabulary The Circulatory System Doctor Equipments Blood Cells Skin Diseases Human Anatomy and Physiology - Types of Tissues Human Excretory System Human GeneticsOther quiz:
Mouth - Stomach › ViewWhat is the acidic fluid that passes from the stomach following churning?
A. Bolus
B. Chyme
C. Hydrochloric acid
D. Enzymes
Health › View
What is the matter?
A. He has sprained his ankle
B. He has sprained his wrist
C. He has a rash on his elbow
D. He has a backache