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.
Habituation to the Aversive Effect of the Odor of Pups
The Number of Children Americans Think Are Ideal
The adsorption spectrum of rhodopsin compared with the human scotopic spectral sensitivity curve.
Representative Odor Thresholds
Taste Receptors
Taste Test