Imagine you were going to model the flow of energy in an ecosystem and the flow of elements in the ecosystem using a diagram. compare and contrast your diagrams for these two systems.

Because of its structure the cell membrane is known as a phospholipid ? a. bilayer b. molecule c. fluid d. barrier

When plants use sunlight to make food, the energy of sunlight is

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.