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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).

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Approximately 25% of all reported medication errors result from some kind of name confusion.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

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The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

These species are all at risk of extinction. Species with “slow” life-h These species are all at risk of extinction. Species with “slow” life-h
The human digestive system The human digestive system
The mesotelencephalic dopamine system in the human brain, consisting of the nigrostriatal pathway ... The mesotelencephalic dopamine system in the human brain, consisting of the nigrostriatal pathway ...
Human embryo at successive stages of development (not to scale). Human embryo at successive stages of development (not to scale).
Structural comparison of human blood vessels and the direction of blood flow through them Structural comparison of human blood vessels and the direction of blood flow through them
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