|
|
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
The longest a person has survived after a heart transplant is 24 years.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.
Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
![The brain. (a) Superior (top) view. (b) Sagittal view of a sectioned brain to reveal internal featur](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_48_56_94051155.jpeg)
![Orangutans are limited to the islands of Sumatra and Borneo, where their numbers are rapidly declini](https://biology-forums.com/gallery/47/medium_275816_26_01_15_5_17_47_203801564.jpeg)