The release of GnRH by the hypothalamus is
a. stimulated by melatonin, and inhibited by light.
b. inhibited by melatonin, and stimulated by light.
c. stimulated by both melatonin and light.
d. inhibited by both melatonin and light.
Question 2
The primary causal factor in sexual orientation is
a. genetic, as determined by the fact that 50 percent of identical twins show concordance for homosexuality.
b. due to brain structure differences, as demonstrated by Simon LeVay's work on INAH 3.
c. due to prenatal androgens, as demonstrated by CAH syndrome in females.
d. not clearly understood and may include some or all of the above depending on gender.
Light-mantled Albatrosses regularly dive to feed, and can dive to below 12 m.
Excitation of isolated chlorophyll by light.
An example of light palpation of the abdomen. (B) the physician uses two hands for deep bimanual ...
A monochromatic beam of light of wavelength 600 nm is incident normally on a diffraction ...
Location of the hypothalamus and pituitary gland
Movement of Chloroplasts in Response to Light