AP BIOLOGY

Detailed explanation-1: -Medical Reasons Dogs May Stink Secondary yeast or bacterial infections on the skin or inside the ears remain the most common medical reasons dogs might smell awful. Allergies often begin the process, which leads to scratching and licking that open the door for infections.

Detailed explanation-2: -Unlike humans, dogs have an additional olfactory tool that increases their ability to smell. Jacobsen’s organ (or the vomeronasal organ) is a special part of the dog’s olfactory apparatus located inside the nasal cavity and opens into the roof of the mouth behind the upper incisors.

Detailed explanation-3: -Instinct, imprinting, conditioning, and imitation are the four types of animal behavior.

Detailed explanation-4: -This behavior is not hardwired into the dog’s DNA; it is learned behavior, or a conditioned response (usually barking) to a conditioned stimulus (doorbell or knock). The dog learns through repeated exposure that when the doorbell rings, you jump up and open the door to reveal a person on the other side.