Scientists use trophic cycles to study the flow of matter in an ecosystem by observing feeding relationships between organisms.Which of the following statements is most correct regarding the terminology used in trophic cycles?
A)It is incorrect to refer to an omnivore as a heterotroph.
B)The terms herbivore and autotroph mean the same thing.
C)Labeling a carnivore as a heterotroph would be correct.
D)Autotrophs can be correctly labeled as primary consumers.
E)Primary producers would include the heterotrophic species.

Question

Quizplus · Accepted Answer

Carnivores are considered heterotrophs because they obtain their energy from consuming other organisms. Autotrophs, on the other hand, are organisms that can produce their own energy through photosynthesis or chemosynthesis. Herbivores are organisms that feed on plants and are considered primary consumers. Primary producers are autotrophs that produce organic matter from inorganic substances. Therefore, labeling an omnivore as a heterotroph or saying that autotrophs can be labeled as primary consumers is incorrect.

Scientists Use Trophic Cycles to Study the Flow of Matter