There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.
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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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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
The Calvin Cycle Was Determined by Isotope Labelling Methods