Question
Biology Question on Eco-System
Energy flow in an ecosystem is
A
unidirectional
B
bidirectional
C
multidirectional
D
all of these
Answer
unidirectional
Explanation
Solution
The flow of energy in an ecosystem is unidirectional. That is, it flows from the producer level to the consumer level and never in the reverse direction. Hence, energy can be used only once in the ecosystem. But the minerals circulate and recirculate many times in the ecosystem.