A 2016 experiment by researchers at UC Irvine established a link between autonomic nervous system activity during sleep and memory consolidation. Participants in the study were given Remote Associates Test (a creative word association test) which was followed by the treatment: either a nap or quiet wake time. Following the treatment, a second Remote Associates Test. Individuals who napped showed improved performance on the second test compared to those who did not. The researchers found that heart rate variability and time spent in each sleep stage accounted for 73% of the improvement observed. Regarding the experiment, which of the following is essential for consolidating the creative word test memories?
A. Brainstem
B. Cervical spinal cord segments
C. Thoracic spinal cord segments
D. Lumbar spinal cord segments

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.