If ΔG is negative, the reaction is always spontaneous.
If ΔG is positive, the reaction is non-spontaneous and will require a sustained input of energy for it occur.
If ΔG is zero, the reaction is at equilibrium and no work can be done.
<span>The answer is parasitism. Parasitism, the connection between two types of plants or creatures in which one advantages to the detriment of alternate, now and then without executing the host living being. The flea can gain benefits but the dog may harm the process. </span>
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