Question

question 6
1 pts
what is a major factor that limits the number of trophic levels that can be found in a food chain?

amount of fertilizer

number of decomposers

amount of energy

number of top consumers

Explanation:

To determine the factor limiting trophic levels, we analyze each option:

• "Amount of fertilizer": Fertilizer affects plant growth but isn't a direct limit on trophic levels in a food chain's energy flow.
• "Number of decomposers": Decomposers recycle nutrients, not directly limit trophic level count via energy transfer.
• "Amount of energy": Energy transfer between trophic levels is ~10%, so less energy is available at higher levels, limiting how many levels can exist (as energy diminishes too much for additional levels).
• "Number of top consumers": Top consumers are a result, not a limiting factor on the number of trophic levels.

Answer:

C. amount of energy