Multiple Choice
When the oxygen content of the blood becomes too low, the ________ releases ________ to stimulate red blood cell production.
A) pituitary gland; follicle-stimulating hormone
B) kidney; erythropoietin
C) thyroid gland; thyroxine
D) stomach; gastrin
E) pancreas; insulin
Correct Answer:

Verified
Correct Answer:
Verified
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