Anxiety, moodiness, and feeling scared about the future are all common signs of
a. distress.
b. being productive at work or school.
c. everyday life.
d. eustress.

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?