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Author Question: A primary actor is the actor whose goal identifies and drives the use case. Indicate whether the ... (Read 48 times) |
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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.