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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The familiar sounds of your heart are made by the heart's valves as they open and close.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
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The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
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About 80% of major fungal systemic infections are due to Candida albicans. Another form, Candida peritonitis, occurs most often in postoperative patients. A rare disease, Candida meningitis, may follow leukemia, kidney transplant, other immunosuppressed factors, or when suffering from Candida septicemia.
The internal structures of the outer, middle, and inner ear.
The Ear/Hearing
Soil Degradation and Loss
Under what conditions can the transition to middle school be associated with declines in grades and ...
Invasive species and the biodiversity loss
Conservation biology arose in response to biodiversity loss