There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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More than 30% of American adults, and about 12% of children utilize health care approaches that were developed outside of conventional medicine.
Marianne Nicholson, Kwakwaka'wakw pictograph of a copper on a cliff near Kingcome.
Poor single parents and their children
Should Parents Make Their Own Baby Food?
How reciprocal functions compare to the parent function
The phenotypes and genotypes of the parents (P1) and the offspring (F1) in a cross involving seed sh
PCR screens of Navajo affected with albinism (N4 and N5) and the parents of N4 (N2 and N3)