Which one of the following is TRUE regarding erythropoietin?
A) It is secreted by the liver in response to rising blood pH.
B) It causes the bladder to store increased amounts of urine.
C) It is part of a positive feedback loop used to control the amount of hydrogen ion secreted by the kidneys.
D) It stimulates the production of red blood cells in the bone marrow.
E) It is secreted in response to rising blood oxygen levels.
D
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Some of the work with Hawaiian fruit flies illustrated the presence of a
a. prezygotic isolating mechanism, which involved behavioral isolation. b. prezygotic isolating mechanism, which involved gametic isolation. c. prezygotic isolating mechanism, which involved temporal isolation. d. postzygotic isolating mechanism, which involved behavioral isolation. e. postzygotic isolating mechanism, which involved gametic isolation.
Why are some proteins more likely than others to diverge within a species?
What will be an ideal response?
The carbohydrate that plants use to store energy is called:
A. cellulose B. starch C. fructose D. sucrose E. chitin
Multi-drug-resistant Mycobacterium tuberculosis is a bacteria that causes the disease tuberculosis (TB)
This form of tuberculosis infection cannot be treated with the standard TB drugs. What genetic elements like-ly account for the antibiotic resistance of multi-drug-resistant M. tuberculosis? a. prophages b. plasmids c. bacteriophages d. A and B e. None of the above