D transport blood the skeletal system as nothing to with the blood transport
Answer Marginal revenue is the amount of revenue one could gain from selling one additional unit. Marginal cost is the cost of selling one more unit. If marginal revenue were greater than marginal cost, then that would mean selling one more unit would bring in more revenue than it would cost.
Explanation:
People learn from there mistakes! So every mistake they made back then, they changed based on that mistake, they then passed that knowledge on to their kids, who then made their mistakes etc...
