The answer is D<span>. Cell walls are made of cellulose. Cell membranes are made of proteins and phospholipids
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Answer:
air pressure force factor
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Answer:
An inherited life-threatening disorder that damages the lungs and digestive system.
Cystic fibrosis affects the cells that produce mucus, sweat and digestive juices. It causes these fluids to become thick and sticky. They then plug up tubes, ducts and passageways.
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Explanation:
