You have just moved from Norfolk, Virginia (sea level), to Taos, New Mexico (high in the

mountains), and you find yourself out of breath climbing a small hill. Three months later, climbing the
same hill, you have no difficulty. In the interim you have not altered your level of activity or diet.
Which hormone has been at work?
a. angiotensin
b. erythropoietin
c. aldosterone
d. estrogen
e. anti-diuretic hormone


B

Biology & Microbiology

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A plant's ability to absorb carbon dioxide is reduced when:

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