Unidirectional
Bidirectional
Multidirectional
None of the above
Answer is Right!
Answer is Wrong!
The correct answer is A. Unidirectional.
Energy flow in an ecosystem is unidirectional, meaning that it flows from one organism to another in a single direction. This is because energy is always lost as heat when it is transferred from one organism to another. As a result, the amount of energy available to each successive trophic level decreases.
Option B is incorrect because energy flow is not bidirectional. Energy is not transferred back and forth between organisms in an ecosystem.
Option C is incorrect because energy flow is not multidirectional. Energy is not transferred in all directions in an ecosystem.
Option D is incorrect because energy flow is unidirectional.