Final answer:
Primate olfactory anatomy is characterized by a reduction of the muzzle or snout (A), a reduction of the olfactory region of the brain (B), and a lack of a rhinarium in most species (C).
Step-by-step explanation:
Primate olfactory anatomy is characterized by a reduction of the muzzle or snout (A), a reduction of the olfactory region of the brain (B), and a lack of a rhinarium in most species (C). Compared to other mammals, primates rely less on their sense of smell and more on their sense of vision. They have a reduced snout and a relatively small area in the brain for processing olfactory information. Primates also tend to have large eyes with forward-facing placement, allowing them to have stereoscopic vision.