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.

[EX Q]: Question: What is the outer layer of the sun made up of? Answer: plasma
[EX A]: outermost layer of the sun, made up of a plasma that extends millions of kilometers into space.

[EX Q]: Question: How do reptiles typically reproduce? Answer: sexually
[EX A]: Reptiles typically reproduce sexually and lay eggs.

[EX Q]: Question: What is made up of the pinna, ear canal, and eardrum? Answer: the outer ear
[EX A]:

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.
user
The outer ear includes the pinna, ear canal, and eardrum. These structures gather sound waves, funnel them into the ear, and pass the vibrations to the middle ear.

