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Consider three comets that have orbital periods of 100, 1,000, and 100,000 years.Where would each of these comets likely originate, in the Oort Cloud or the Kuiper Belt? If you wanted to study material that was the best example of pristine Solar System material, which would you study?
Arousal
A state of heightened physiologic and psychological activity.
Human Immune System
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against disease-causing pathogens.
Branches
Divisions or subdivisions of a field or subject, often representing areas of specialization or different aspects of a larger discipline.
Restless Legs Syndrome
A neurological disorder characterized by an uncontrollable urge to move the legs, usually due to discomfort.
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