During the teen years, rapid physical changes during puberty increase the need for sleep, while overall sleep time decreases, resulting in most adolescents experiencing excessive daytime sleepiness known as

Weber's Law is I/I = K; and values for K are: .02 for weight; .08 for brightness; and .03 for length. If a line is 30" long, what is the minimum change in length before one would notice a difference between the two?

a. .9" b. .6" c. .3" d. none of the above

What is the approximate top speed for a long, myelinated axon to transmit an action potential in the human body?

a) 2.24 miles per hour b) 50 miles per hour c) 224 miles per hour d) 500 miles per hour