Animal many-celled organisms can't make their own food (mammal, birds, reptiles, fish, insects). Plant many-celled organisms make their food through photosythesis (flowering plants, trees, mosses, ferns). Fungi have no chlorophyll to make their own food (mold, mildews, rusts, yeasts, mushrooms). Protists mostly one-cell microrganisms including plant/animal like organisms (algae, amoebas, paramecia) has true nucleus. Monera microscopic one-celled organisms, no nucleus, absorb their food (bacteria & blue-green algae).