Grasses are the producers. Gazelles, warthogs, and wildebeests are primary consumers. Lions and cheetahs would be the secondary consumers.
Answer:
<em>e. speciation</em>
Explanation:
The definition of speciation is: the evolutionary process by which populations evolve to become distinct species.
In this scenario, the bears that were once of the same species evolved in order to adapt to their environment. Once they evolved, they could no longer produce with each other, as they are now different species.
The energy content of food is described in terms of calories because the energy in food ultimately becomes heat.
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A specific protein called a receptor
1, heartburn. Keep stomach acid in the stomach!