Protoctists - Neither animals, plants, fungi, or prokaryotes. Fungi - Lacking chlorophyll fungi feed on decaying matter or living organisms. Most fungi reproduce by forming spores, and they usually have cell walls that contain chitin or cellulose. Includes mildews, molds, mushrooms, plant rusts, and slime molds. Mollusks - Live in aquatic or moist environments.
Most mollusks have a hard shell enclosing a soft body.
Includes oysters, mussels, clams, snails, slugs, limpets, squids, cuttlefish, and octopuses. Includes all mammals, birds, amphibians, reptiles, and vertebrate fish. Bacteria - Refers to Archea and Eubacteria, simple, unicellular organisms. The Natural Selection. United Nations Environment Programme.