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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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The horizontal fraction bar was introduced by the Arabs.

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Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

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Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Areas of referred pain; A, anterior view; B, posterior view. Areas of referred pain; A, anterior view; B, posterior view.
Conduction of pain impulses. Conduction of pain impulses.
Sensory and Emotional Components of Pain Sensory and Emotional Components of Pain
Pathways of arachidonic acid metabolism: Mechanisms of pain. Pathways of arachidonic acid metabolism: Mechanisms of pain.
An inflamed tongue (glossitis) is one symptom of a riboflavin deficiency An inflamed tongue (glossitis) is one symptom of a riboflavin deficiency
Reflex Responses to Pain Reflex Responses to Pain
Video: Cardiac Cycle (Part 3 of 4)

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