“Flow of energy is unidirectional”. It means that:
A. Energy which passes to the higher trophic levels doesn’t come back to lower trophic levels.
B. The energy of the autotrophs reaches back to the solar input.
C. None of these
D. Energy always flows form east to west direction.
Answer:A
“Flow of energy is unidirectional”. It means that:
A. Energy which passes to the higher trophic levels doesn’t come back to lower trophic levels. B. The energy of the autotrophs reaches back to the solar input. C. None of these D. Energy always flows form east to west direction.
Explanation: The flow of energy in an ecosystem is always unidirectional. It means that as the energy moves progressively through the various trophic levels, it is no longer available to the previous level. The energy that is captured by the autotrophs (producers) does not revert back to the solar input. The energy which passes to the herbivores (primary consumers) does not come back to the autotrophs (producers).