Levels of Classification
This is the broadest level of classification.
Domain
This kingdom includes animals such as humans, dogs, and insects.
Animalia
This scientist developed the modern system of naming organisms.
Carl Linnaeus
If an organism is Eukaryotic... it is most likely multi or unicelluar?
Multicellular
Animals with backbones belong to this group.
Vertebrates
This classification level comes right after Kingdom.
Phylum
Organisms in this kingdom make their own food using photosynthesis and include trees and flowers.
Plantae
What are the pairs of questions called in the dichotomous key?
Couplets
Are the organisms in the Fungi kingdom multicellular or unicellular?
Multicellular
Animals without backbones belong to this group.
Invertebrates
This is the most specific classification level used to identify organisms.
Species
This kingdom includes mushrooms, molds, and yeast.
Fungi
Scientists use this tool with paired statements called couplets to identify organisms.
Dichotomous key
Are organisms in the Eubacteria kingdom unicellular or multicelluar?
Unicellular
What does autotroph mean?
An organism that can make its own food using energy from sunlight or chemicals.
This classification level groups closely related species.
Genus
These organisms are single-celled and lack a nucleus.
Eubacteria
This type of characteristic—like number of legs, body covering, or presence of a backbone—is used at each step of a dichotomous key.
What is a physical (observable) characteristic?
The cells of Prokaryotic organisms ...
DO NOT have a Nucleus
What does heterotroph mean?
An organism that cannot make its own food and must get energy by eating other organisms.
List the levels of classification in order from broadest to most specific.
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
This kingdom contains single-celled organisms with a nucleus, like amoebas.
Protista
When using a dichotomous key, scientists compare traits such as wings vs. no wings or fur vs. scales to do this with organisms.
What is identify or classify organisms?
The cells of Eukaryotic organisms ...
DO have Nucleus
What is the name of the bacteria that causes strep throat?
Streptococcus