Classification of Living Things

How are organisms classified?

Carolus Linnaeus

Created the two-part scientific naming system for living things

_{Why do we classify living things?}

• There are millions of living things on Earth.

• Classifying allows scientist to make connections between new and discovered species.

• Make connections between different living things.

^{How do scientists know living things are related?}

• There are two ways: physical and chemical characteristics

• Physical includes: skeletal structures, egg development, and body adaptations.

• Chemical includes: DNA and RNA and mutations in the organisms' genes

How are living things named?

• Taxonomy is the science of describing, classifying, and naming living things.

• There are 8 levels of classifying.

• Domain is the largest

• Species is the smallest

How are living things named?

• Riddle to remember the order of the levels.

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How are living things named?

• Each species has a two part scientific name.

• It includes the Genus and the Species.

• Genus includes similar species.

• Species is a group of organisms that are very closely related. This is very specific.

How to write a scientific name?

• A scientific name always includes the genus name followed by the species name.

• The first letter of the genus is always capitalized and the first letter of the species name is lowercase.

• The entire scientific name is written in italics or underlined.