A multicellular organism is comprised of many cells which have varying degrees of specialization and individualization as the life forms reach higher levels of complexity. Some cells become efficient at one particular ta... More »

Two of the main advantages of being a unicellular organism as opposed to a multicellular organism are the ability to reproduce asexually and the lack of need for a complicated organ system, in which many things can go wr... More »

Multicellular organisms enjoy several distinct benefits, including a larger size and greater complexity than unicellular organisms. Multicellular organisms include many types of plants and animals while the class of unic... More »

A unicellular organism is any life form that is composed of a single cell; they live and carry out all life processes as a single cell. Based on their complexity, unicellular organisms can be placed in one of two categor... More »

A non-living organism is defined as an organism that lacks, or has stopped showing, signs of life. Non-living organisms are inanimate and have stopped displaying capabilities for growth, reproduction, respiration, metabo... More »

A heterotroph is any organism, including carnivores, omnivores and herbivores, that cannot produce its own food through solar energy and must feed off another life form. In the food chain, heterotrophs represent the cons... More »

Archaebacteria include many unique characteristics and traits: they comprise one kingdom of living organisms, are among the oldest life forms on earth and prefer to live in the most extreme environments on the earth to n... More »