Answer to Question 1
The olfactory sense is very keen. The nose can detect extremely low concentrations of substances. There are only four basic tastes. Therefore the sense of smell is much keener than the sense of taste.
Answer to Question 2
Canada's extreme cold makes it possible only to grow crops in the south. In the southern region, long day light hours in the summer aid in the growth of crops. Farther to the north, the ground stays frozen most of the time and makes agriculture impossible. Canada stretches from the Pacific to the Atlantic Oceans as well as the Arctic Ocean in the north. Fish is abundant here.
Activation of the Primary Gustatory Cortex by Taste Stimuli
Sensitivity Testing
Taste receptors, taste buds, and papillae on the surface of the tongue. Two sizes of papillae are ...
Representative Odor Thresholds
The smell, sight, and taste of food, such as freshly baked bread, triggers the release of saliva
Smell and Taste