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?
Your heart beats over 36 million times a year.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
Did you know?
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Steps involved in in vitro fertilization.
Blood Pathway
Drugs for Heart Failure
Selected Drugs for Psoriasis and Related Disorders