*ECON* What are at least two other distinctions between the three nations that affect the standard of living besides the ones listed on the table? Explain why these factors are important. (2 points)

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.