Phosphorus and sulfur are returned to the soil primarily by the actions of
a) producers.
b) decomposers.
c) primary consumers.
d) pollution deposition.

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 prevents odyssey from killing the sleeping cyclops

The organelle pictured is found in cells of and is theorized to have once been an independent organism.