How are chunks of time in the geologic timeline organized

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?

Explain nonnuclear inheritance. ~ ap biology

You see a white marker with an orange circle and black lettering. what does this marker tell you