This document summarizes the five kingdoms of life: plant, animal, fungi, bacteria, and protist. It provides brief descriptions of key characteristics of each kingdom. The plant kingdom contains vascular and nonvascular plants. The animal kingdom is divided into invertebrates and vertebrates. Fungi feed on dead plants and animals and include mushrooms and molds. Bacteria are microbes that can be seen only with a microscope and some cause illness. The protist kingdom features the amoeba, a single-celled organism visible to the naked eye.