Answer:
the esophageal sphincter
Explanation:
This muscle opens and lets food and liquid enter the stomach and closes to prevent the food and liquid from leaking back into the esophagus, however if it is not working properly it could open and close at the wrong times
Inhaling and exhaling deeply.
It has to be d. The others wouldn't really make sense.
The fight-or-flight response is associated with the release of acetylcholine. uric acid, and lymphocytes. epinephrine. teratogens. into the bloodstream.
Answer:
To reduce the exposure to air pollution, indoor and outdoor one can check the quality of air at his location. To reduce inside or indoor one should clean the house frequently to avoid the growth of mold or prevent dust in the house.
For outdoor, using cars, bikes, and other fuel-based transport vehicles can lead to an increase in air pollution so one should use walking or mechanical transport means. Industrialized chimneys produce harmful carbon and nitrogen gases which should be limited to reduce.
