Select your answer:
Topics:
Immunity in Humans Digestive System SSTI and Bone Infections Disorders of The Joints Diseases PHYSIOLOGY OF KIDNEY Joints Integumentary System: Skin Disorder The Cardiovascular System OCR A-level Blood Typing Respiratory Nail Systematic Bacteriology Chemistry Biodiversity ConservationOther quiz:
Body › ViewMilk teeth are ___ in number
A. 30
B. 20
C. 10
D. 32
Respiratory System › View
What is the main function of the alveoli?
A. bring oxygen in and sent carbon dioxide out
B. move air into the esophagus
C. absorb nutrients
D. maintain blood flow throughout the body