What is the most dramatic effect of growth hormone on the skeleton?
a. expansion of the pelvis
b. growth of long bones
c. hardening of the thorax and ribs
d. growth of the skull
e. alignment of spinal canal
b
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Action potentials are able to travel over long distances without decaying because
A) The axons are perfectly insulated, so no current is able to leak out. B) The action potential uses completely different ions than graded potentials. C) Once the electrical signal has passed threshold, it is impossible for the signal to decay. D) One action potential generates the next one in an adjacent area of membrane.
The amount of glucose filtered is directly proportional to the plasma glucose concentration at all plasma glucose concentrations
Indicate whether the statement is true or false
which phase is the period of time during which cells are in a non-dividing phase outside of the cell cycle? the length of this period is variable and for some cells it may last days, years, or the rest of the rest of one's life.
a) G2 b) M c) S d) G1 e) G0
After the infant is born, the umbilical vein becomes the ________.
A. fossa ovale B. round ligament C. ligamentum venosum D. ligamentum arteriosum