Can someone help me place appropriate terms in the boxes for the role of carbon dioxide in autotrophs and heterotrophs? Yes of course. Autotrophs are organisms that make their own food. Photosynthetic autotrophs like plants, algae, and some bacteria capture energy from the sun using chlorophyll. ... Heterotrophs that only eat plants are called herbivores. Omnivores eat both plants and other animals and carnivores only eat other animals.