Nicotine produces its effects by a. increasing the synthesis ...

[DyllonKazuo]

Nicotine produces its effects by
 
  a. increasing the synthesis of acetylcholine (ACh).
 b. preventing the release of acetylcholine (ACh).
 c. activating receptors for acetylcholine (ACh).
 d. interfering with the action of acetylcholinesteras e (AChE).

Question 2

Symptoms of caffeine withdrawal include
 
  a. cardiac arrhythmias.
  b. severe headaches.
 c. muscle tremors.
 d. lack of sleep.

[harveenkau8139]

Answer to Question 1

c

Answer to Question 2

b

[DyllonKazuo]

Great answer, keep it coming

[Joy Chen]

Excellent