Answer: Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract
Sugar is not a drug. Sure, sugar is addictive but fats are not drugs. The brain doesn’t respond to nutrients, like sugar, like the same way it does to additive drugs. Such as heroine.
D. The Peyer's patches can release B cells to destroy Listeria
Answer: BEHAVIOURAL ACTIVATION
Behavioural activation focuses on education,increasing activities and exercise,and progress rewarding.
Explanation: Behavioural activation is one of the short term psychological treatment for mood disorders, and suicidality.It is a form of coping strategy.
In Behavioural activation,one's contact with reality is increased and the individual is made to engage in activities that elevates mood and makes him/her feel better.These activities are aimed at rewarding the individual positively thus they are drawn from those things that the individual have passion for and always craving for inorder to bring a sense of fulfillment and satisfaction.
Outcomes on the activities perform can be rewarded inorder to encourage the individual and motivate him/her to do better.
I believe it is C. Swimming
I hope it helped :)