The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
The human body produces and destroys 15 million blood cells every second.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
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?
The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.
Calvin Cycle
Fern life cycle
Dew point/temperature relationships in (a) unsaturated air and saturated air (b and c).
The Four Steps of The Cell Cycle
Life cycle of Dictyostelium discoideum, a cellular slime mold