Scientific Taxonomy

–      the study of categorizing organisms

Binomial Nomenclature – two-part scientific naming of organisms

–      the first word identifies the genus and the second word is the species

Example: Ursus americanus –

Ursus horribilis –

Ursus arctos –

Ursus maritimus –

NOTE: the format: capitals and italics

Levels of Classification (7) or Taxa:

“King Philip Came Over From Germany Swimming”

Example:        HUMAN                  Dandelion

KINGDOMS (6)

1. Eubacteria – cell without a nucleus with rigid cell wall (peptidoglycan)
2. Archabacteria – cell without a nucleus living in harsh conditions
3. Protista – cell with a nucleus
4. Fungi – multi-cellular heterotrophs with a cell wall
5. Plantae – multi-cellular autotrophs
6. Animalia – multi-cellular hetertrophs without a cell wall

Prokaryotic cells – do not have a nucleus

Eukaryotic cells – have a membrane bound nucleus

Phylogeny – history of evolution of organisms (phylogenetic tree)

Dichotomous Key – a two part key used to identify living things

William Anderson (Schoolworkhelper Editorial Team)

William completed his Bachelor of Science and Master of Arts in 2013. He current serves as a lecturer, tutor and freelance writer. In his spare time, he enjoys reading, walking his dog and parasailing.

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Barn Owl: Species & Overview

Article last reviewed: 2022 | St. Rosemary Institution © 2010-2025 | Creative Commons 4.0

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