An organism that creates its own food through photosynthesis or chemosynthesis. Ex. Plants
Autotroph
An organism that cannot produce its own food, and uses other organism as food. Ex. Animals
Heterotroph
Has a nucleus and membrane with organelles. Ex. Animal Cells
Eukaryote
Simple in structure, usually with no organelles. Ex. Single Cell Organisms
Prokaryote
An organism composed of multiple or more than one cell. Ex. Animals
Multicellular
An organism composed of one cell only. Ex. Archaebacteria
Unicellular
