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: What purpose does the appendix serve in humans today? Answer: none
None purpose does the appendix serve in humans today.

Question: When food enters the stomach after a period of fasting, a drop in what initiates the conversion of pepsinogen to pepsin? Answer: ph
Ph food enters the stomach after a period of fasting, a drop in what initiates the conversion of pepsinogen to pepsin.

Question: How many pathways do plants have for carbon fixation? Answer: three

Three many pathways do plants have for carbon fixation.