Start with your producers, or plants (grasses, flowers, etc.). Then your 1st level consumers (herbivores), like grasshoppers, mice, etc. Then your second level producers (carnivores and omnivores) that eat the herbivores (like birds). And keep going, knowing each of the levels get eaten by each other. 10% of energy is transferred in each level. An example might be...
Grass > Mice > Hawk > Vulture
Answer: d
Explanation:
Because it's quick easy and efficient so you can have easy access to it and all you use is your toes and calves.
Its obviously wrong. And the right desicion is to say no, and try to explain that it is wrong for them to even have it. But its your own desion, just try to make the right one.