Evolution

Evolution

Of or pertaining to the change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.

Industry: Archaeology

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Evolution

penicillin

Archaeology; Evolution

The first antibiotic discovered, penicillin is derived from the mold Penicillium notatum. It is active against a wide variety of bacteria, acting by disrupting synthesis of the bacterial cell wall.

John Scopes

Archaeology; Evolution

The 24-year-old teacher in the public high school in Dayton, Tenn. , who was the defendant in the "monkey trial" of 1925. He agreed to be the focus of a test case attacking a newly passed Tennessee ...

radioactivity

Archaeology; Evolution

The emission of energy due to changes in the nucleus of an atom. Such spontaneously released radiation is a characteristic of certain elements and at some levels can be harmful.

fetus

Archaeology; Evolution

The embryo of a mammal that has reached a stage of development in the uterus in which most of the adult features are recognizable. Specifically in humans it refers to the stage of development after ...