What is the perceptual process that we use to quickly determine the quantity of a small set of objects?

As Molly is walking across campus, a car swerves toward her. Her heart races as she jumps out of harm's way. This mobilization of energy is due to the action of Molly's _______?

a. somatic b. skeletal c. parasympathetic d. sympathetic

Seven-year-old Adriana ran in from school and shouted, "Hey, Mom did you know that 2+3 is the same as 3+2?" Adriana is demonstrating

a. centration. c. reversibility. b. decentering. d. conservation.