Classification. Why Do Scientists Classify?. KEY CONCEPT: Biologists use classification to organize living things into groups so that the organisms are easier to study. Classification is grouping things together based on their similarities.
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KEY CONCEPT: Biologists use classification to organize living things into groups so that the organisms are easier to study.
KEY CONCEPT: Carolus Linnaeus devised a system of naming organisms in which each organism has a unique, 2 part scientific name.
A series of 8 levels of classification are used.
The largest group of the most varied organisms is the Domain.
The smallest, and most specific group is a Species.
Only two of the same species may mate and produce fertile offspring.Levels of Classification
KEY CONCEPT: Organisms are placed into Domains and Kingdoms based on their cell type, ability to make food, and the number of cells in their bodies.
KEY CONCEPT: The domain Eukarya can be further divided into 4 Kingdoms; Protista, Fungi, Plant, Animal.