The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.
Did you know?
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
Did you know?
Approximately 500,000 babies are born each year in the United States to teenage mothers.
Schedule for Controlled Substances
Cell kill and chemotherapy.
Three-cell model
Cardiac damage in rheumatic fever.
Modern Cell Theory
Depiction of cell transformations in isotonic, hypertonic, and hypotonic solutions