There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.
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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
Turgid, plasmolyzed, and flaccid plant cells.
Plant adaptations for salty conditions.
Plant
Plant Cells
Plant cell structure
Cytokinesis in animal cells (a) and plant cells (b)