Question

which statement best describes the relationship between trophic levels and energy flow? energy increases as it moves up trophic levels energy is lost at each trophic level, so higher levels have less available energy energy remains constant across all trophic levels trophic levels do not influence energy transfer in ecosystems how does conservation contribute to ecosystem health? by increasing limiting factors. by maintaining biodiversity and resource sustainability by decreasing carrying capacity. by simplifying food webs.

Explanation:

1. In an ecosystem, energy transfer follows the 10 - percent rule. As energy moves from one trophic level to the next, about 90% of the energy is lost as heat or used for metabolic processes. So, higher trophic levels have less available energy.
2. Conservation helps maintain biodiversity by protecting habitats and species. It also ensures resource sustainability, which is crucial for the overall health of an ecosystem. Increasing limiting factors would harm the ecosystem, decreasing carrying - capacity is negative for the ecosystem, and simplifying food webs reduces ecosystem stability.

Answer:

1. Energy is lost at each trophic level, so higher levels have less available energy
2. By maintaining biodiversity and resource sustainability