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.

Example Input: Question: What is the process that allows organisms with better traits to survive and produce? Answer: natural selection
Example Output: Natural selection is the process that allows organisms with better traits to survive and produce.

Example Input: Question: All species of crocodilians have similar body structures, including an elongated snout, powerful jaws, muscular tail, large protective scales, streamlined body, and eyes and nostrils that are positioned on what? Answer: top of head
Example Output: All species of crocodilians have similar body structures, including an elongated snout, powerful jaws, muscular tail, large protective scales, streamlined body, and eyes and nostrils that are positioned on top of head.

Example Input: Question: What is the study of how forces affect the motion of objects? Answer: dynamics
Example Output:
Dynamics is the study of how forces affect the motion of objects.