Question

Flow of energy in an ecosystem is always

Options

• unidirectional

• bidirectional

• multi directional

• no specific direction

Answer 1

unidirectional

Explanation - 

In an ecosystem, the autotrophs capture the energy present in sunlight and convert it into chemical energy. So, energy flows from Sun to the autotrophs. From autotrophs, the energy goes to the herbivores and decomposers. From, herbivores, the energy is passed on to the organisms of the next trophic level and so on but it never flows backwards. So, the flow of energy in an ecosystem is always unidirectional.