The movement of molecules from an area where there is a higher concentration of the substance to an area where there is a lower concentration of the substance

Illustrate, label, and explain how atmospheric carbon and oxygen find there way into a consumer and then back into a producer. include the following terms in your illustration: co2, 02, respiration, photosynthesis, sugar, mitochondria, chloroplast, water, solar radiation

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?