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Topic 3 Lesson 4: Managing Materials

Across
Tiny sacs of lung tissue specialized for the movements of gases between air and blood
An organ system that transports needed materials to cells and removes wastes
Fluid that travels through the lymphatic system consisting of water, white blood cells, and dissolved materials
The process by which wastes are removed from the body
Down
The two passages that direct air into the lungs
A blood vessel that carries blood away from the heart
A blood vessel that carries blood back to the heart
A tiny blood vessel where substances are exchanged between the blood and the body cells
Small filtering structure found in the kidneys that removes wastes from blood and produces urine