There are five kingdoms that classify life on Earth: Plant, Animal, Algae and Protista, Fungus, and Bacteria. The Plant Kingdom includes multicellular organisms like plants that can photosynthesize and make their own food. The Animal Kingdom contains multicellular organisms like animals that feed on other living things and can move. The Algae and Protista Kingdom encompasses unicellular and multicellular organisms that can both photosynthesize and feed on other organisms.