Biology, 08.01.2020 04:31 alexvane78

When the diaphragm contracts, a. it lifts the rib cage b. it flattens out c. it flattens out and d. it rises in the thoracic cavity e. it rises in the thoracic cavity

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When the diaphragm contracts, a. it lifts the rib cage b. it flattens out c. it flattens out and d....