instruction:
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.
question:
Question: What is the term for the length of the route between two points? Answer: distance
answer:
Distance is the length of the route between two points. The SI unit for distance is the meter (m).

question:
Question: Reflected in their relatively high level of intelligence and their ability to learn new behaviors, what organs tend to be relatively large in primates? Answer: brains
answer:
Primates tend to have bigger brains for their body size than other mammals. This is reflected in their relatively high level of intelligence and their ability to learn new behaviors.

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Question: What theory proposes that microorganisms are the cause of many diseases? Answer: germ theory
answer:
The germ theory proposes that microorganisms are the cause of many diseases.