Question

Which is not true about a complex food web?

Options

• Populations tend to remain about the same size.

• Energy levels remain about the same for all trophic levels.

• Inputs are constant, and outputs are minimal except for heat.

• Most of the energy entering the system maintains the whole community.

Answer 1

Energy levels remain about the same for all trophic levels.

Explanation:

Energy levels do not remain the same across all trophic levels. Energy decreases at higher trophic levels due to losses, mainly as heat, during metabolic processes, making energy transfer inefficient in ecosystems. Thus, energy levels diminish progressively as we move up trophic levels, not remain constant.