B) To use scientific knowledge to solve problems or to make tasks easier
I'm not a biologist, so I don't know the actual answer. But my best guess is that there is more in fruits and vegetables than just simple sugars or even complex carbohydrates. There are vitamins for example. Some of the vegetables have simple proteins which are much easier to break down that the complex ones found in meat.
C. because mots are squriles that are very large lol is that all you needed?
Answer:
The number of trophic level in food chain is limited because at each trophic level a large amount of energy is being utilized for the maintenance of organism and lost as heat.
Explanation: