In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Question: Does blood flow increase or decrease when blood vessels constrict? Answer: decrease
Blood flow decrease when blood vessels constrict.

Question: Which two systems primarily function to rid the human body of the wastes resulting from cellular energy production? Answer: respiratory and circulatory systems
Respiratory and circulatory systems two systems primarily function to rid the human body of the wastes resulting from cellular energy production.

Question: Where does the small intestine begin? Answer: stomach

The small intestine begins in the stomach.