Question

Find the incorrect statement about the energy flow through an ecosystem?

• A. Energy is conserved and stays in an ecosystem, to be used by organisms repeatedly.
• B. Solar radiation is the original energy source for the vast majority of organisms on earth.
• C. Energy flow is one-way, from autotrophs to progressively higher trophic levels.
• D. Energy flow is inefficient; a lot is lost in each transfer from one organism to another.
• E. All solar radiation used in photosynthesis will eventually be lost as heat.

Answer 1

The correct option is A Energy is conserved and stays in an ecosystem, to be used by organisms repeatedly.

Solar energy is the ultimate source of energy. The light energy is given by the sun is converted to chemical energy by plants. This energy is taken up by consumers further, in the form of food.

But during each trophic level, 90% of energy is lost as heat and only 10% is transferred to the next trophic level.

Thus, the statement in option A is incorrect.