What nonendocrine organ produces erythropoietin, which stimulates red blood cell production in the bone marrow?
A. kidneys
B. skin
C. heart
D. pituitary
E. liver
A. kidneys
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Which of the following would not occur in the structure marked by the letter "A"?
a. warming of air b. odor detection c. gaseous exchange of oxygen and carbon dioxide to and from blood d. filtering of dust from air e. moisturizing of dry air
What are intermediate filaments
What will be an ideal response?
Which of the following statements about tunicates is incorrect?
A. Tunicates are sessile as adults. B. Tunicates are nonvertebrate chordates. C. Tunicate larvae can reproduce. D. Tunicates are all marine animals. E. Tunicate larvae are tadpole-like with all of the basic chordate characteristics.
An defect in the thyroid hormone from birth results in ________.
Fill in the blank(s) with the appropriate word(s).