An ecosystem is a geographic area where plants, animals, and the other organisms work for the existence of bubble life.
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Variation of ecological habitats within a species is characteristic of which type of diversity?</h3>
The variation of ecological habitats within a specie is character of the type of diversity is known as Ecosystem Diversity.
Ecosystem is defined as the different kinds of habitats, ecological processes and communities. A biological community is defined by the specie which occupy a specific area and the interactions between the species.
So we can conclude that: An ecosystem is a geographic area where plants, animals, and the other organisms work for the existence of bubble life.
Learn more about Ecological Habitat here: brainly.com/question/7413811
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Stephen Crane was both a novelist and a C. reporter, although he left that other job and became a full time writer. 
        
                    
             
        
        
        
B. The nervous system collects and responds to information about the external and internal environment.
        
             
        
        
        
I think it is light so B) light