Questions: Listen Use the following diagram of a hypothetical food web to answer the following questions. The arrows represent the transfer of food energy between the various trophic level. Which letter represents an organism that could be a carnivore? A B C E D

Solution Steps

The arrows in the diagram point from the food source to the consumer. Therefore, an arrow pointing from A to C means C consumes A.

Carnivores consume other animals. We are looking for letters that have arrows pointing to them from other letters.

• D consumes both B and C
• C consumes A
• A consumes B
• E consumes C

Final Answer: The letters that could represent carnivores are C, D, and E. The question asks for one letter, and only D and C appear as options. Since the question asks "which _could_ be a carnivore?" any of C, D, and E are correct. C and D are shown in the options, and thus are correct.