What is the Major Difference Between an Odorant and a Chemical

Question

What is the major difference between an odorant and a chemical pheromone?
A) odorants are larger molecules than pheromones
B) pheromones degrade more rapidly odorants
C) only odorants are volatile than pheromones
D) only pheromones are species-specific.
E) only pheromones can travel through water

Accepted Answer

The major difference between an odorant and a chemical pheromone is that pheromones are species-specific, meaning they are designed to be received and understood by members of the same species, whereas odorants can be detected by a variety of species.