Archaea	Bacteria	Protists	Fungi	Plants	Animals
Cell Structures 1: Nucleus	None	None	Yes	Yes	Yes	Yes
Cell Structures 2: Cell Wall	Various Polysaccharides (but never cellulose)	Various Polysaccharides (but never cellulose)	Variable type, according to species	Polysaccharide (chitin)	Polysaccharide (cellulose)	None
Cell Structures 3: Chloroplast	None	No (but Chorophyll is present in some types)	Yes in some, but not all	None	Yes	None
Structure: Bodies	Simple cells	Single cells, though clumps or strings can form	Mainly single- cellular, but some are multi-cellular	Mainly multi-cellular, but some are single-celled	All are muti-cellular	All are muti-cellular
Energy Sources: Food	Some types can metabolize inorganic chemicals	Three types: Photosynthetic,  Saprophyte, Parasite	Three types: Photosynthetic,  Ingestor, Combination of the two	Two types: Saprophyte, Parasite	Photosynthetic	Two types: Ingestor, Parasite

Photosynthetic - uses light to make sugars with the aid of chlorophyll.
Saprophyte - secrete enzymes which digest organic matter and absorb the digested, usually liquid food
Parasite - derives nourishment from a living host.
Ingestor - takes food from the external environment and digests it inside the body.  Animals can be carnivores (meat-eater), herbivores (plant-eater) or omnivores (eats a variety organic matter, both plants and meat).

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