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

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If all the neurons in the human body were lined up, they would stretch more than 600 miles.

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IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

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Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

The prone position The prone position
Acute exacerbations of asthma can require management in the emergency department. The child is place Acute exacerbations of asthma can require management in the emergency department. The child is place
Anatomical position for carotid artery Anatomical position for carotid artery
Measuring the resistance of a spark plug wire with a multimeter set to the ohms position. The ... Measuring the resistance of a spark plug wire with a multimeter set to the ohms position. The ...
Position the client Position the client
The position of an object that is oscillating on a spring is given by the equation x = (18.3 ... The position of an object that is oscillating on a spring is given by the equation x = (18.3 ...
Video: Transferring genes into plants Animation

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