Organism
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An organism is any living thing that functions as an individual. Such a definition raises more problems than it solves, not least because the concept of an individual is also difficult. Several criter
One criterion proposes that an organism cannot be divided without losing functionality. This basil plant cutting is however developing new adventitious roots from a small bit of stem, forming a new plant.
Apolemia, a colonial siphonophore that functions as a single individual
Insect cyborg
Multicellular organism
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A multicellular organism is an organism that consists of more than one cell, and more than one cell type, unlike unicellular organisms. All species of animals, land plants and most fungi are multicell
Organism
…is a microorganism such as a protist, bacterium, or archaean, composed of a single cell, which may contain functional structures called organelles. A multicellular organism such as an animal, plant, fungus, or alga is composed of many cells, often specialised. A colonial organism such as a siphonophore is a being which…
The nematode Caenorhabditis elegans stained to highlight the nuclei of its cells