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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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Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

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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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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Rafflesia arnoldii, the world's biggest flower, lives as a parasite in Indonesian rain forests. Rafflesia arnoldii, the world's biggest flower, lives as a parasite in Indonesian rain forests.
Deserts differ across the world. (a) Acacia trees between a gravel plain and sand dunes in the Namib Deserts differ across the world. (a) Acacia trees between a gravel plain and sand dunes in the Namib
Great Horned Owl Great Horned Owl
Courtyard of the Great Mosque of Damascus. Courtyard of the Great Mosque of Damascus.
Upward social mobility, though welcome, can place people in a world so different from their world of ... Upward social mobility, though welcome, can place people in a world so different from their world of ...
The Ancient Aegean World The Ancient Aegean World
Video: Virtual Enzyme Kinetics & Lineweaver Burk Plot

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