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When emphysema develops, the alveoli and lung tissue are destroyed. With this damage, the alveoli cannot support the bronchial tubes. The tubes collapse and cause an “obstruction” (a blockage), which traps air inside the lungs. Too much air trapped in the lungs can give some patients a barrel-chested appearance.
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<span>A can of soup provides 4 servings and has 100 kcal per serving, how many kcal are in the entire can?
100*4=400 kcal
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The exercise principle that states that a muscle must have more resistance than it is accustomed to in order to be conditioned is called the Muscle adaptation principle.