Do you think a food chain, food web, or energy pyramid is most useful in studying feeding relationships between organisms in an ecosystem? justify your answer.

Energy Pyrenees because it gives you representation to show which organisms form the lowest to the highest and which one contains the most Energy so it would help on how the relationship between organisms depending on the level of the ecosystem.

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