Multiple Choice
Thyroxine is a peptide hormone,but its mechanism is different from other peptide hormones.Which of the following statements is true concerning this difference?
A) It is very specific in the cell type it targets.
B) It is a stimulant of cellular metabolism and targets all cells.
C) It causes positive feedback.
D) It does not require a second messenger to cause a response.
Correct Answer:

Verified
Correct Answer:
Verified
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