The bodys ________ keeps track of how many hours a person has ...

[Wadzanai]

The bodys ________ keeps track of how many hours a person has been awake and creates increasing pressure to fall asleep.
 
  a. circadian timing system
  b. reward center
  c. homeostatic drive for sleep
  d. limbic system

Question 2

Restricting the amount of sleep that teens and adults get in laboratory setting lead to which of the following effects?
 
  a. Lower attentiveness and alertness, but not poor executive functioning.
  b. Poor executive functions, but not lower attentiveness and alertness.
  c. No effect on attentiveness, alertness, or executive functions.
  d. Reductions in attentiveness, alertness, and executive functions.

[sultansheikh]

Answer to Question 1

Answer: c. homeostatic drive for sleep

Answer to Question 2

Answer: d. Reductions in attentiveness, alertness and executive functions.

[Wadzanai]

Great answer, keep it coming

[Sarahjh]

Wow, this really help