Organisms are constantly interacting with their environment. Sometimes this interaction has a positive effect on the environment, other times a negative impact. Beetles in the forest infest and eat limbs of trees that have fallen to the forest floor. The best way to describe the beetles impact is to say that

A)

they are having a neutral impact on the environment by acting as decomposers.

B)

they are having a positive impact on the environment by acting as decomposers.

C)

they are having a negative impact on the environment by acting as decomposers.

Eliminate

D)

they are having a predatory impact on the environment by acting as decomposers.

The correct answer is option B) "they are having a positive impact on the environment by acting as decomposers".

Explanation:

Beetles in the forest have a positive impact on the environment by acting as decomposers when they eat limbs of trees that have fallen to the forest floor. The trees that lose limbs do not longer need the organic matter than the limbs have. This organic matter re-enters to the cycle of life by decomposers such as the beetles, that eat them and have a positive effect by "recycling" this matter.

there's the proffessional site that will you.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;