Which statements describe the energy in a food chain? Select three options.

Explain the importance of producers, primary consumers, secondary consumers and decomposers in an ecosystem.

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?