Which term best describes an organism that relies on consuming other organisms for its food?

Which term best describes an organism that relies on consuming other organisms for its food?

• A. Heterotroph
• B. Autotroph
• C. Producer
• D. Consumer

Answer: (A)

The idea here is how organisms obtain their organic matter. An organism that cannot make its own organic molecules and must get them by eating or consuming other organisms is called a heterotroph. This term precisely captures the dependence on preformed organic matter from others, covering animals, fungi, and many bacteria. In contrast, autotrophs make their own food from inorganic sources (like plants using sunlight), and producers are typically autotrophs that form the base of the food web. Consumers are organisms that feed on others, but heterotroph is the more specific and comprehensive label for this feeding strategy.

The idea here is how organisms obtain their organic matter. An organism that cannot make its own organic molecules and must get them by eating or consuming other organisms is called a heterotroph. This term precisely captures the dependence on preformed organic matter from others, covering animals, fungi, and many bacteria. In contrast, autotrophs make their own food from inorganic sources (like plants using sunlight), and producers are typically autotrophs that form the base of the food web. Consumers are organisms that feed on others, but heterotroph is the more specific and comprehensive label for this feeding strategy.