Question

Give five important features of energy flow through various trophic levels.

Answer 1

Five important features:

1. Energy flow is unidirectional, from sun to producers to consumers.
2. Energy decreases at each trophic level (pyramid of energy is always upright).
3. Only about 10% of energy transfers to the next trophic level.
4. Energy lost as heat cannot be reused by any organism.
5. The 10% law limits the number of trophic levels to about 4 to 5.