Human thresholds for odorant detection ______.
A)are around 15 parts per million
B)vary as a function of the odorant being detected
C)are around .005 parts per million
D)are much lower than those for dogs

Question

Quizplus · Accepted Answer

Human thresholds for odorant detection vary as a function of the odorant being detected. Some odorants can be detected at very low concentrations, while others require much higher concentrations to be detected. The threshold can also vary between individuals based on factors such as age, gender, and exposure history.

Human Thresholds for Odorant Detection ______