Choose commensalism, mutualism or parasitism and , explain how symbiosis functions in the partnership work.

I'll choose Commensalism.

Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. It works when one species typically uses the other for a purpose other than food. For example, mites attach themselves to larger flying insects to get a “free ride.” Hermit crabs use the shells of dead snails for homes.

Hope this helps. - M

Analogy of active transport is that its like pushing the water that fell over a waterfall, back up the river to the falls above. It takes a lot of energy for the cell to do this.