Jane is having trouble sleeping. As she sits in bed looking around the darkened room, she notices that she does not see colors very well, this is because are responsible for color

 Cones

Explanation:

The nature of color blindness depends on which of the three kinds of cones (green,red, and  blue) is inoperative.

changes in factors like average income and preferences can cause an entire demand curve to shift right or left. this causes a higher or lower quantity to be demanded at a given price. demand curves relate the prices and quantities demanded assuming no other factors change. it is important for consumers to know this information, because it is crucial for them to know what they can afford and can't afford. i hope this .

answer; software failure, and human error;