There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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Asthma cases in Americans are about 75% higher today than they were in 1980.
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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
Structure of a typical prokaryotic cell
Structure of a lymph node
Heme consists of a complex organic ring structure, protoporphyrin
Review in Changes in Eight Different Domains of Adult Functioning
Structure of a Sterol Rather than being made from fatty acids