All of the above, you need all of those to survive. Especially a community with a big population
If you remove a secondary consumer then, primary consumers have the chance to overpopulated and Tertiary consumers underpopulate or die off because there's no secondary consumers to eat
<span>It is called the Growth hormone deficiency, a medical condition due to insufficient growth hormone. The common symptoms is a short height, low blood sugar in newborns, and decreased muscle mass, high cholesterol levels and poor bone density in adults.<span>
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