Dichotomous Keys and Classification

Front

What is a dichotomous key?

Back

A dichotomous key is a tool that allows the identification of organisms through a series of choices that lead the user to the correct name of a given item.

Front

What is the scientific classification system?

Back

The scientific classification system organizes living organisms into hierarchical categories: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

Front

What is the difference between genus and species?

Back

Genus is the first part of the scientific name and groups together species that are closely related, while species is the second part and identifies the specific organism.

Front

What is the scientific name of the housefly?

Back

Musca domestica.

Front

What characteristic would NOT be used in a dichotomous key?

Back

Ability to swim.

Front

What type of organism is classified under the kingdom Animalia?

Back

All animals, including insects, mammals, birds, and reptiles.

Front

What is the genus of the organism Castor canadensis?

Back

Castor.

Front

What is the species of the organism Castor canadensis?

Back

canadensis.

Front

What is the purpose of a dichotomous key?

Back

To help users identify unknown organisms by answering a series of questions based on observable characteristics.

Front

What are the main categories in the scientific classification system?

Back

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.