Answer:
true because In ecology, a niche is a term describing the relational position of a species or population in its ecosystem to each other
Explanation:
A senator has the power to voice out to people,they are like the leaders and make decisions for the good of the people they are standing for against a opposition
Taxation can help the activities of a particular group in the sense that they limits competition or encourage it whether it is a producer or consumer groups.
tax expenditure amount to subsidy because they lead to exemptions or deductions and reduction of credits targeted to a particular or specific group, for example medicare.
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They would be concerned becuase they affect they area with the symptoms/problems and they would aid them because they are most ways common symptoms are found and usually help find more problems
