Homeostatic control that takes place at the tissue or cell by using paracrine or autocrine signals is called ________.
A) down-regulation
B) Cannon's law
C) reflex control
D) local control
D) local control
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Exposure to UV radiation can cause changes in DNA and can therefore be considered a mutagen.
Answer the following statement true (T) or false (F)
A male body builder starts taking injections of testosterone (an anabolic steroid) on a daily basis. After three weeks, which of the following would you expect to observe?
A) decreased levels of LH B) decreased levels of FSH C) increased sex drive D) decreased levels of GnRH E) All of the observations
The dural sinuses drain mostly into the internal ________ vein.
What will be an ideal response?
In the carbonic acid-bicarbonate system, which of the its molecular species resists a drop in pH? (HINT: If your stomach pH is too low, what do you do?)
A) CO2 B) H2CO3 C) H2O D) HCO3-