Answers: 2
Health, 23.06.2019 04:50, aliyahgregory
Felicia has a respiratory infection and has been coughing up a lot of mucus. she knows this means that her respiratory system is working to restore balance by getting rid of the invasive materials from her lungs. how does this happen?
Answers: 2
Muscles, such as those in the walls of the stomach and intestines, work without conscious control. i...
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