Explain why dead or cliseased trees can serve as a food source for some
birds.

Dead or diseased trees can serve as a food source for some birds because there are some insects which feed on these dead trees and these insects are eaten by some birds. The body of insects is made of protein so it is a good food for birds. The insects which lived in the dead and diseased trees and feed on it are termites and bugs. Termites are also known as white ants. They feed on dead bodies of plants.

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answer by yourhope:

answer is

human impact on the environment can be seen in the deterioration of the !

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