Answer:
the diaphragm helps draw air into the lungs
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Answer:
The zimmers
Explanation:
The zimmer are retired so they will most likely have the least amount of stress.
The Gordons have their first baby so they are most likely the most stressed.
The Watsons have two children but they are older so they are more independent.
The phillips have no children but they are both employed. Their jobs could stress them out but they have no children so their levels of stress are lower or tied with the watsons