Question

Flow of energy in an ecosystem is always

• A. Unidirectional
• B. Bidirectional
• C. Multidirectional
• D. No specific direction

Answer 1

The correct option is A

Unidirectional

The correct option is A:

Explanation of the correct option:

1. When moving from one trophic level to another in the food chain, most natural ecosystems lose 10% of their energy.
2. On Earth, the Sun is the only source of energy; energy is trapped by producers and then passed on to other creatures.
3. Energy flows in one direction from lower to higher levels. It will never return to lower levels, and as it moves up one level from lower levels, it always loses energy.

Final answer: Flow of energy in an ecosystem is always unidirectional.