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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.
Did you know?
Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
Did you know?
Everyone has one nostril that is larger than the other.
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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.
Did you know?
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
![Two stubby screwdrivers used to access screws that have limited space above. A straight blade is on ...](https://biology-forums.com/gallery/29/medium_548020_25_05_17_2_36_14_294321111.png)
![A replaceable PROM used in an older General Motors computer. Notice that the sealed access panel ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_8_05_55_298772489.png)