1 Preheat oven to 350 degrees F (175 degrees C). 2  Grease and flour one 9x13 inch baking pan. 3  Sift flour and baking powder together and set aside. 4  Cream butter or margarine and the 1 cup sugar together until fluffy. 5  Add eggs and the 1/2 teaspoon vanilla extract; beat well.irections. 1  Preheat oven to 350 degrees F (175 degrees C). 2  Grease and flour one 9x13 inch baking pan. 3  Sift flour and baking powder together and set aside. 4  Cream butter or margarine and the 1 cup sugar together until fluffy.
Quick Answer. The sense of sight is important as it helps compensate for a loss of other senses, enables the differences between good and bad food to be distinguished, helps create impressions and find partners and helps ensure safety by perceiving signs of danger.
As one important example, human mothers and infants are heavily reliant on eye contact during their interactions. One study found that human infants look at the face and eyes of their caregiver twice as long on average compared with other apes. Clue to our humanity. Other ideas have also been proposed to explain why humans have such visible eyes. For example, white sclera might signal good health and therefore help signal to others our potential as a mate. Or, as one other recent study suggested, visible eyes might be important for promoting cooperative and altruistic behavior in individuals that benefit the group.