Hayden started smoking marijuana with friends regularly after school. she is most likely going to

a. produce healthy levels of dopamine and strengthen her impulse control

b. experience conditioning in her brain that will cause cravings

c. improve her emotional control and develop her decision making

d. reduce her need for dopamine and decrease her tolerance

Insulin is a peptide therapeutic used to manage type 1 diabetes, which affects more than 20 million people worldwide according to the international diabetes federation. a significant limitation to the broad distribution and use of insulin to treat type 1 diabetes is the fact that it must be administered by injection rather than orally. why is insulin administered by injection and not orally?