1. in what way is the practice of
psychology closely related to
the practice of the natural
sciences?

Explanation:

Well both include  practice in medical studies. Hope it helps

between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.

answer: tell your parents first, and wait another couple of days. if it gets any worse, then you should call and ask. and you can always take pain meds if need be.

explanation: