Answer:
Beaks changed as the birds developed different tastes.
Explanation:
Fruits, seeds, or insects picked from the ground or cacti have affected their evolution. Long, pointed beaks made some of them more fit for picking seeds out of cactus fruits. Shorter, stouter beaks served best for eating seeds found on the ground.
<span>Deep currents are driven by water temperature differences (warm at the equator, cold at the poles).</span>
The farmer is attempting to apply the principle of conditioned taste aversions to accomplish his objectives. Conditioned taste aversion occurs when an animal associates the taste of a certain food with symptoms caused by a toxic, spoiled, or poisonous substance. Generally, taste aversion is developed after ingestion of food that causes nausea, sickness, or vomiting.Tate aversions is an important principle that help us better understand animals and people tend to form one pairing associations between a certain stimuli, unlike other classical conditioning examples, for it one eats a food and becomes ill, he or she is predisposed to avoid the substance.
Most likely d because they have the most concentrated population.