Definition: A unicellular organism that features both flagella and slender, rigid pseudopodia (resembling those of heliozoan amoeba), either simultaneously or during different phases of the life cycle.
Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
Definition: A heterotrophic organism that feeds by ingesting particulate organic material (living or dead organisms), which are then digested within the body.
