- Plants

- Animals

- Fungi

- Protists

Plants are multicellular eukaryotes that can produce their own food through photosynthesis. Animals are multicellular eukaryotes that cannot produce their own food and must eat other organisms to obtain energy. Fungi are multicellular eukaryotes that cannot produce their own food and must absorb nutrients from their environment. Protists are a diverse group of eukaryotic organisms that do not fit into any of the other three groups. Protists can be unicellular or multicellular, and they can be autotrophic or heterotrophic.