In an ecosystem with four levels—producers, primary consumers, and two higher-level consumers—describe where the decomposers operate within the context of these trophic levels. provide at least two examples.

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

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

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.