Biology, 09.12.2019 23:31 zachisthequeen2002
1. the primary function of the is to supply the blood with oxygen so that the blood can deliver oxygen to all parts of the body. (1 point)
digestive system
cardiac system
respiratory system
endocrine system
2. the is a strong wall of muscle that contracts to create a suction in the chest to draw in air and expand the lungs. when the muscle relaxes, the chest cavity decreases and the air is pushed out. (1 point)
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1. the primary function of the is to supply the blood with oxygen so that the blood can deliver oxy...
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