Is this a question about an article or something?
Answer:
usually around two to four weeks
Explanation:
Parasitism, that should be the correct answer for this question!
Answer:
Peristalsis is also part of mechanical digestion. This refers to involuntary contractions and relaxations of the muscles of your esophagus, stomach, and intestines to break down food and move it through your digestive system.
Explanation:
