The difference in Edna's and her partner's sense of smell could be due to variations in their odor receptors and sensory adaptation.
The difference in Edna's and her partner's sense of smell could be attributed to the variability in the quality and quantity of odor receptors expressed among individuals. Edna's ability to detect food burning on the stove and flowers in the yard indicates a keen sense of smell, while her partner's inability to smell these things suggests a possible variation in their olfactory receptor types.
Sensory adaptation plays a role in how sensitive individuals are to specific smells, and the threshold at which they can detect them. For example, Edna might have a lower difference threshold for detecting these scents compared to her partner.
https://brainly.com/question/43267729