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?
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Did you know?
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Apparent and True Orbits of Alpha Centauri.
True Friendship
Adapoids and omomyoids had longer snouts and are the first “true” primates.
The nurse conveys attentive listening through a posture of involvement
Midsagittal section indicating locations of true and false pelves