Which best explains why a decrease in the types of insects in an ecosystem reduces the sustainability of the ecosystem?

A=Organisms that depend on insects may not survive, eventually harming all the organisms that are interconnected.

B=The biodiversity of the ecosystem cannot be protected by laws unless there are a certain number of insect species.

C=There will likely be fewer insects that harm plants, causing an increase in plant diversity.

D=Having fewer insects allows other organisms to use the resources that the insects were using.

An ecosystem is an interaction of the biological community. If insects are decreased then organisms depending on them will be affected, and the food web will be disturbed. Thus, option a is correct.

What is a food web and chain?

Food web and chain are the depictions of the flow of the energy in the ecosystem between the different organisms at different levels. The increase or the decrease in the population of one level affects the whole web.

The food web is an interlink of many producers and consumers dependent on each other for food and energy. Any disturbance in one species will affect the other species linked to them.

Therefore, option A. decrease in insects will harm the whole food web.

Learn more about the food web here:

https://brainly.com/question/2233704

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