Answer:
Herbivore is an efficient food choice for a carnivore because herbivore contain maximum amount of biomass within themselves.
Step-by-step explanation:
Herbivores are the organism which can generate their own food by the process called photosynthesis.As herbivores can produce their own food they contain maximum amount of biomass within themselves which can undergo breakdown when digested by other organism of different tropic level.
Carnivore choose herbivores as efficient food because herbivores contain maximum amount of energy that is stored within their biomass.