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

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

This Black-browed Albatross has been hooked on a long-line. This Black-browed Albatross has been hooked on a long-line.
Examples of Ways That Different Types of Intersections of Two Line Segments Can Be Transformed into Examples of Ways That Different Types of Intersections of Two Line Segments Can Be Transformed into
Historical Time Line of Regulatory Acts, Standards, and Organizations Historical Time Line of Regulatory Acts, Standards, and Organizations
Horizontal, frontal (coronal), and sagittal planes in the human brain and a cross section of the ... Horizontal, frontal (coronal), and sagittal planes in the human brain and a cross section of the ...
Shoulder Stretch by Horizontal Flexion of Arm. Shoulder Stretch by Horizontal Flexion of Arm.
The original Supply and Demand graph The original Supply and Demand graph
Video: Cellular slime mold life cycle Animation

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