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A biologist studies the origin, development, function, and structure of animal and plant life. The word biology comes from the Greek word bios, which means "mode of life." Biology covers a broad area within the life sciences, a biologist studies everything from algae, to plants, to invertebrate animals, to mammals, to one-celled animals like amoebas, to slime moulds. Every living thing lives in a habitat or environment that is suited to the way the organism lives. There are many different kinds of living organisms because there are many different kinds of environments.

A biologist usually specializes in one area and is named by that speciality. However, many of these specialities share many of the same characteristics yet maintain their own special components.

Salaries can range from around £17,000 to £50,000 a year.

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