1. Large cities or Maine landscapes
2. The population of coyotes might increase if the preadetors of coyotes die out, for ex; Wolves eat coyotes for a competition or hunger. It will effect the ecosystem because it will eat more deer and the grass will grow more because the can't eat it. The population will increase because the coyote population are eating all the deer and are bearing children!
3. It can cause ripple effect through out the ecosystem or food chan, like for example: if a certain species of fish die out the preadetors that eat the fish will ie and the preadetor of that preadetor will also die out and it will continue on ward 
HOPE I HELPED
        
             
        
        
        
<span>The number of births equals the number of deaths
*brainliest answer if possible 
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“Genes and environmental effects are often part of the explanation. “
“...disease-causing alleles of one gene may be suppressed by alleles of another gene elsewhere in the genome, or a person's overall health may influence the strength of a disease phenotype.”
https://www.khanacademy.org/science/high-school-biology/hs-classical-genetics/hs-non-mendelian-inheritance/a/polygenic-inheritance-and-environmental-effects
        
             
        
        
        
The answer is observations
        
             
        
        
        
The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen.