In Alaska, grizzly bears must eat 10 fish and drink up to 25 liters of water to live. Alocal river can provide about 150 fish a day without damaging the fish population. What is the limiting factor for this population?

Microorganisms aren’t all decomposers; in fact, many act as producers or primary consumers in an ecosystem. how do microorganisms that act as producers benefit the rest of an ecosystem in terms of energy transfer? what about microorganisms that act as primary consumers?

What would be the most likely result if the ph of the stomach were increased to 5

Amoeba sisters video recap pedigrees