Multicellular organism — In this image, a wild type Caenorhabditis elegans is stained to highlight the nuclei of its cells. Multicellular organisms are organisms that consist of more than one cell, in contrast to single celled organisms. Most life that can be seen with… … Wikipedia
Organism — life on Earth redirects here. For the BBC series, see Life on Earth (TV series). Life on Earth Temporal range: Archaean or earlier – Recent These Escherichia coli cells provide an example of a prokaryotic microorganism … Wikipedia
multicellular — 1. adjective That has many cells, often differentiated in function. Ant: unicellular 2. noun Such an organism … Wiktionary
multicellular — adjective Biology (of an organism or part) having or consisting of many cells. Derivatives multicellularity noun … English new terms dictionary
Model organism — Escherichia coli is a gram negative prokaryotic model organism … Wikipedia
Unicellular organism — Single celled redirects here. For prison cell assignment, see Single celling. A unicellular organism, also known as a single celled organism is an organism that consists of only one cell, in contrast to a multicellular organism that consists of… … Wikipedia
Digital organism — Part of a series on Evolutionary Biology … Wikipedia
cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… … Universalium
Evolutionary history of life — Although evidence of early life is scarce and often difficult to interpret, it appears that life appeared on Earth relatively soon (on the geologic time scale) after the planet had cooled enough for liquid water to be present. The dominant theory … Wikipedia
Evolution of multicellularity — The first organisms that existed are believed to have been unicellular. How organisms then became multicellular is a huge evolutionary step and is consequently under much debate. However, unlike some other huge steps in evolution,… … Wikipedia
