Select your answer:

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Biological Molecules Integumentary System & Body Directions Human Digestive System Asthma Genetics and Probability Infection Anatomy Animal Genetics and Nutrition Emergency Medicine ICU Heart Structure and Double Circulation Healthy Lifestyle Pathophysiology_Endocrine Sexual Reproduction Cardiorespiratory or Vascular SystemsOther quiz:
Biotechnology › ViewThis movement of oxygen molecules from an area of higher concentration to an area of lower concentration is known as _______.
A. diffusion
B. osmosis
C. respiration
D. photosynthesis
Types of Doctors › View
When a person has a medical concern, they may turn to a __________ for help.
A. teacher
B. plumber
C. doctor
D. None of these