compare and contrast the different types of heterotrophs Use the terms Carnivore, herbivore, and omnivore in your discussion to get full credit.

I'm not sure if your asking about a A, B, C, D question but, as far as I can tell this is what I know

Explanation:

(:Comparing:) Heterotrophs occupy the second and third levels in a food chain, a sequence of organisms that provide energy and nutrients for other organisms. ... Herbivores—organisms that eat plants—occupy the second level. Carnivores (organisms that eat meat) and omnivores (organisms that eat plants and meat) occupy the third level.

(:Contrasting:) Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers. ... Herbivores—organisms that eat plants—occupy the second level. Carnivores (organisms that eat meat) and omnivores (organisms that eat plants and meat) occupy the third level.

Hope this helps.

the answer will be a) proteins i believe

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project