Which of the following exercise comparisons is not an example of increasing intensity levels?

a.

jogging vs. sprinting

b.

weight lifting with 50 pounds vs. 150 pounds

c.

cycling 10 miles vs. running 10 miles

d.

cycling on a level surface vs. cycling uphill

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?