Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.
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Your heart beats over 36 million times a year.
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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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There are approximately 3 million unintended pregnancies in the United States each year.
A Prokaryotic Cell
The Plant Cell Wall
Basal cell carcinoma, a frequent type of skin cancer that rarely metastasizes.