Among american warblers, several different species often live in the same spruce trees and eat caterpillars. however, each species reproduces at a slightly different time of year and each species also forages at different areas within the tree canopy. these differences in foraging behaviors and reproduction is an example of

The correct answer is - Resource partitioning.

Explanation:

Resource partitioning is dividing the limiting resources according to species to avoid competition in a particular niche for the resources. In any ecosystem different species compete for the resources, to deal with this competition organisms have to find ways to co-exist with one other.

Resource partitioning helps in the coexistence of several species that make a living in common ways in different ways such as reproduce slightly different time of year and others.

Thus, the correct answer is - resource partitioning.

answer: c

explanation:

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.