What is the underlying cause of Type I diabetes?

The type of hormone that diffuses into a cell, attaches to an intracellular receptor and then activates the DNA to make proteins is:

The steroid based hormones do not dissolve in the blood plasma because:

When thinking about how an amino acid based hormone effects change in a cell, which molecule activates protein kinases?

Which zone of the adrenal cortex secretes cortisol?

The normal pH of the blood is:

Which of these helps to buffer pH when it becomes acidic?

Cells of the blood are made in the:

Fact-checkers go through the story number by number, connecting each back to originating notes and any confirming information.

In what stage should you fill as many holes as possible?