Editing Nutrition (section)

=== Protist ===
[[Protist]]s include all [[eukaryote]]s that are not animals, plants, or fungi, resulting in great diversity between them. [[Algae]] are photosynthetic protists that can produce energy from light. Several types of protists use mycelium similar to those of fungi. [[Protozoa]] are heterotrophic protists, and different protozoa seek nutrients in different ways. [[Flagellate]] protozoa use a [[flagellum]] to assist in hunting for food, and some protozoa travel via infectious spores to act as parasites.<ref>{{Cite book |title=Handbook of the Protists |publisher=[[Springer Science+Business Media|Springer]] |year=2017 |isbn=978-3-319-28149-0 |editor1-last=Archibald |editor1-first=John M. |edition=2nd |pages=2–4 |doi=10.1007/978-3-319-28149-0 |lccn=2017945328 |editor2-last=Simpson |editor2-first=Alastair G. B. |editor3-last=Slamovits |editor3-first=Claudio H.}}</ref> Many protists are mixotrophic, having both phototrophic and heterotrophic characteristics. Mixotrophic protists will typically depend on one source of nutrients while using the other as a supplemental source or a temporary alternative when its primary source is unavailable.<ref>{{Cite journal |last=Jones |first=Harriet |date=1997 |title=A classification of mixotrophic protists based on their behaviour |journal=Freshwater Biology |volume=37 |issue=1 |pages=35–43 |doi=10.1046/j.1365-2427.1997.00138.x |bibcode=1997FrBio..37...35J }}</ref>