Final answer:
Humans and animals have varying numbers of olfactory receptors, which contribute to differences in the sense of smell. Dogs have a more acute sense of smell than humans due to a higher number of olfactory receptor genes.
Step-by-step explanation:
The question explores the differences between genders in regards to the sense of smell. It is evident that humans have about 350 olfactory receptor subtypes that allow us to sense approximately 10,000 different odors, while mice, for example, have about 1,300 olfactory receptor types, suggesting they can sense more odors. Dogs have an even greater olfactory system compared to humans due to the increased number of functional genes for olfactory receptors. These differences in olfactory receptor subtypes and sensitivity contribute to the variations in the sense of smell between genders.