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Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

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Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Tracheid cells in xylem tissue. Tracheid cells in xylem tissue.
Examples of connective tissue. Examples of connective tissue.
Receptive Tissue of the Vestibular Sacs: the Utricle and the Saccule Receptive Tissue of the Vestibular Sacs: the Utricle and the Saccule
Muscle Tissue Components Muscle Tissue Components
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Growth of cultured cells from patients with xeroderma pigmentosum (XP) Growth of cultured cells from patients with xeroderma pigmentosum (XP)
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