Which of the following conditions are true when a firm is maximizing its profits? Total number of units sold is maximized. Revenue gained from the next unit sold equals the cost of producing it. Total revenue is maximized. Selling additional units will reduce profits. Revenue gained from the next unit sold equals zero..

1. Which of the following describes a coevolutionary relationship?
Group of answer choices
The gazelle population of the savannah has evolved quick speed because faster gazelles have
escaped predation and bred more than slower gazelles.
Squirrels in areas with pinecones have evolved stronger jaws to help them eat the seeds, and the
pine trees have evolved rounder pinecones that are harder for the squirrels to eat.
Both finches and parrots are selected for deeper, stronger beaks in years when only large, hard
seeds are available.
All of the above describe coevolutionary relationships.
None of the above, on its own, describes a coevolutionary relationship