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Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

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Green tea is able to stop the scent of garlic or onion from causing bad breath.

The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en The direction of plant cell expansion is controlled by microfibrils and microtubules. Plant cells en
Animal Cell Animal Cell
Nanotechnology in Fuel Cell Schematic of a hydrogen gas tank for a car Nanotechnology in Fuel Cell Schematic of a hydrogen gas tank for a car
cell cell
(a) The distribution of sickle cell anemia in the Old World. (b) The distribution of malaria overlap (a) The distribution of sickle cell anemia in the Old World. (b) The distribution of malaria overlap
A truncated cell lineage chart for C. elegans A truncated cell lineage chart for C. elegans
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

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