An organism that eats only plants, such as a cow or a rabbit.

• A. Omnivore
• B. Carnivore
• C. Herbivore
• D. Detritovore

Answer: (C)

Plants are the main fuel source for this feeding strategy. An organism that eats only plants, like a cow or a rabbit, is an herbivore. Herbivores rely on plant material as their primary food, which sets them apart from omnivores that eat both plants and animals, and from carnivores that eat animal tissue. Detritivores, on the other hand, feed on dead organic matter rather than living plants. In ecological terms, herbivores are often primary consumers, obtaining energy by consuming producers (the plants). Some herbivores have specialized digestive systems, such as cows with a rumen, to break down tough plant fibers like cellulose.