Final answer:
Smell perception develops from birth and is related to cognitive and social development.
Step-by-step explanation:
Smell perception develops from birth as newborns already have a strong sense of smell. For example, newborn babies can distinguish the smell of their own mother from that of others. This ability helps them interact with their caregiver and other humans. Smell perception is related to cognitive and social development as it allows infants to recognize and respond to familiar smells, such as their mother's scent, which can provide them with a sense of comfort and security.