Problem:

Question 1: The testes and ovaries are

A) zygotes. B) gonads. C) sex chromosomes. D) ova. E) progestins.

Question 2: Which of the following hormones has been shown to have several neurotrophic and neuroprotective effects ?

A) estradiol B) growth hormone C) androgen D) progesterone E) testosterone

Question 3: Volunteers in sleep experiments are normally habituated to the sleep laboratory for a few nights before the commencement of any formal testing.

A) to get rid of excess alpha activity. B) to increase the amount of alpha activity. C) because the first night of sleep in a laboratory is often fitful. D) to get rid of delta sleep. E) to increase the levels of stage 2 EEG.

Question 4: Sleep-deprived people sometimes experience __________, brief periods during which their eyelids droop, and they become less responsive to external stimuli, even though they remain sitting or standing.

Could anyone help me please?