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 » Science Biology

There are various examples of unicellular plants, and some of them include bacteria, some types of algae such as diatoms and amoeba. Unicellular organisms are simpler and smaller than the multicellular organisms, and the... More » Science Biology Botany

Humans, dogs, lions, fish and any other living being are all examples of organisms. By definition, an organism is any contiguous living system or being. Even plants are examples of organisms. More » Science Biology
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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 » Science Biology

An organism that eats other organisms, living or dead, is called a consumer. Consumers are known by other names, depending on the type of food consumed. Categories of consumers include the omnivores, the meat-eating carn... More » Science Biology

If both organisms in a symbiotic relationship are executing an action, then one organism's actions benefit the other organism in the dynamic. The name for this type of symbiotic relationship is mutualism. More » Science Biology

A decomposer is an organism that feeds on dead organisms and the waste products of other organisms. Decomposers help nutrients cycle back into the ecosystem. Some examples of decomposers are insects, earthworms and bacte... More » Science Biology