In response to light falling on the retina, ganglion cellsIn ...

[cnetterville]

In response to light falling on the retina, ganglion cellsIn response to light falling on the retina, ganglion cells
 
  a. go from being silent to very active.
 b. go from being active to being silent.
 c. change their spontaneous rate of firing.
 d. release glutamate onto photoreceptors.

Question 2

In response to hot temperatures, animals
 
  a. perspire or pant and dilate blood vessels.
 b. perspire or pant and constrict blood vessels.
 c. increase thyroid activity and reduce brown fat cell numbers.
 d. stimulate brown fat activity and increase white fat cell numbers.

[guyanai]

Answer to Question 1

c

Answer to Question 2

a

[cnetterville]

Gracias!

[Perkypinki]

Excellent