In the nervous system, neurotransmitters are the main means of ...

[scienceeasy]

In the nervous system, neurotransmitters are the main means of communication between neurons. The main means of communication between organs in the endocrine system is by ____.
 
  a. glands
  b. cytokines
  c. hormones
  d. thalamus

Question 2

Scientists have just discovered a new hormone that appears to have very specific effects. This specificity of effects is most likely due to ____.
 
  a. a small distance between the gland and the target organs
  b. unique receptors on the target organ
  c. the hormone being secreted by the target organs
  d. the hormone being active in the bloodstream

[Chocorrol77]

Answer to Question 1

ANSWER:
c

Answer to Question 2

ANSWER:
b

[scienceeasy]

Thank you!

[Chocorrol77]

Happy to help