A "kingdom" in biology is a classification of living things. Organisms belong to one of six kingdoms of life. The current kingdoms are the Archaebacteria, Eubacteria, protists, fungi, plants and animals. More »

Eukarya is a classification of living things that includes organisms such as the protists, fungi, plants and animals. Organisms are divided into three domains: Archaea, Bacteria and Eukarya. Domain Eukarya consists of eu... More »

In biology, a classification key is a means of categorizing living organisms by identifying and sorting them according to common characteristics. Also referred to as a dichotomous key, single-access key or pathway key, t... More »

Carolus Linnaeus invented taxonomy, a classification system for biology. Linnaeus published the first part of his findings in 1735 under the title "Systema Naturae." He continued to revise and expand his work throughout ... More »

www.reference.com Science Biology

Linnean classification is the traditional classification system of all living things. This system classifies plants and animals by body structure and a descending order of categories. These categories are kingdom, phylum... More »

According to Biology Online, a matrix in biology is the ground substance where things fill a space. An example of this is the space found within the mitochondrion. More »

Population biology is the study of organism populations as a whole. This branch of biology includes many different facets of biology, including evolution, statistics and genetics. It is used to understand how the populat... More »