Chapter 27
Biology: A Guide to the Natural World · 3 exercises
Problem 1
Given the roles of the various regions of the brain, why is it almost literally true to speak of "higher" brain functions?
3 step solution
Problem 2
It is often said that seeing is believing. Is it reasonable to put this much faith in the human visual system?
5 step solution
Problem 3
The text notes that humans have a few hundred different types of smell or "olfactory" receptors while dogs have about 1,000 . Given this, dogs have a much greater ability to distinguish one scent from another than people do. Meanwhile, humans have sharper daytime vision than dogs and a greater ability to perceive colors in the portion of the visible light spectrum that runs from green through red. With this in mind, in what ways is a daytime walk around the neighborhood likely to be perceptually different for dogs, compared to humans?
3 step solution