An axon that does not receive enough neurotrophins from a target ...

[B]

An axon that does not receive enough neurotrophins from a target cell will ____.
 
  a. branch out and form other synapses on other cells
 b. manufacture its own neurotrophins
 c. degenerate and die
 d. fail to reabsorb transmitters that have already been released

Question 2

Chemicals released by the immune system that attack infections and communicate with the brain to elicit anti-illness behaviors are ____.
 
  a. macrophages
 b. cytotoxic cells
 c. cytokines
 d. natural killer cells

[zhanghao]

Answer to Question 1

c

Answer to Question 2

c

[B]

Wow, this really help

[Missbam101]

Gracias!