Im not sure but I think the answer is Pancreas
Answer:
monopolistic competition is when an industry has many firms offering products that are similar but not identical. unlike a monopoly, these firms have little power to set curtail supply or raise prices to increase profit. Monopolies dictate over a specific thing so they are the only thing that is selling.
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google & known knowledge
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
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