The main purpose of the ____________ system is to break food particles into pieces that can be used.
Topics:Food System & Nutrients Biology for Engineers Bacteria and Protist Review Hazards & Risks Body Defense 5 Major Food Groups Body Fluids Teeths Brain Arteries Heart Anatomy My Teeth Skeletal Tissue Health Body Fluids & Circulation
Other quiz: Respiratory System
Oxygen moves from the lungs into the bloodstream through:
A. small blood vessels in lungs
B. nerve fibers
D. jugular vein