Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Input: Consider Input: Question: What are the two main divisions of the human nervous system? Answer: central and peripheral

Output: The two main divisions of the human nervous system are the central nervous system and the peripheral nervous system. The peripheral nervous system has additional divisions.


Input: Consider Input: Question: What is the small intestine lined with that helps with nutrient absorption? Answer: villi

Output: Image copyright Sebastian Kaulitzki, 2013. The small intestine is lined with tiny villi that help absorb nutrients . Used under license from Shutterstock. com.


Input: Consider Input: Question: The fossil record shows that this type of event is followed by the evolution of new species to fill the habitats where old species lived? Answer: mass extinction

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Output: After each mass extinction, new species evolve to fill the habitats where old species lived. This is well documented in the fossil record.


