Question

how do they harm the various trophic levels .​

Answer 1

how do they harm the various trophic levels .

is the question

answer

The Utility of Trophic Levels

The trophic level concept has been exceptionally durable: it has been one of the basic concepts of ecology for six decades and is one of the few ecological concepts contained in the vocabulary of most educated people. The reason for this distinguished place in the scheme of things is that the concept is both simple and useful. Furthermore, it is universal: it applies to all ecosystems.

Answer 2

Explanation:

Trophic structure, the partitioning of biomass between different trophic levels, is affected by both bottom-up (energy and nutrient inputs into primary producers) and top-down (predator consumption suppresses lower trophic levels) factors.