Multicellular organisms with cells that lack a cell wall. Many are capable of movement, or movement of some of their body parts, at some time of their life. Animals are heterotrophic , that is, they cannot obtain energy from non-living forms and must eat other organisms, or their products, to obtain energy. Kingdom Plantae Plants. Multicellular organisms with cells surrounded by a cell wall made of the carbohydrate cellulose .
Plants are typically non-moving.
Kingdom Fungi Mushrooms, yeasts, and other fungi. Many are decomposers , that is, they obtain energy by breaking down molecules in dead, decaying organisms. The plant life cycle is divided into two phases, the sporophyte phase, which is diploid, and the gametophyte phase, which is haploid. Individual sporophytes reproduce by producing haploid cells called spores through the process of meiosis . These spores develop into the haploid gametophytes.