Multiple choice

What is the type of energy flow in an ecosystem?

  1. Unidirectional

  2. Bidirectional

  3. Multidirectional

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Energy flow in an ecosystem is unidirectional - it flows from the sun to producers, then to various consumer levels, and finally to decomposers. Energy cannot cycle back to lower trophic levels; only nutrients cycle.