Mutualism is a symbiotic relationship (a relationship between two living things) where both animals benefit from the exchange.Mutualism is the way two organisms biologically interact where each individual derives a fitness benefit (i.e. increased reproductive output).utualism is a symbiotic relationship (a relationship between two living things) where both animals benefit from the exchange.
Reaction rates are usually expressed as the concentration of reactant consumed or the concentration of product formed per unit time. The units are thus moles per liter per unit time, written as M/s, M/min, or M/h.
In chemistry, the concentration of a solution refers to the amount of substance dissolved in a certain volume of the solution. The volume chosen is 1 dm 3  1 cubic decimetre (which equals 1000 cm 3 or 1 litre). In this unit we will see how the concentration of reactants affects the rate of reaction.