Many growth factors that help regulate cell growth and division, such as nerve growth factor and epidermal growth factor, act via the JAK/STAT pathway
a. True
b. False
Indicate whether the statement is true or false
False
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Urine flow from the renal pelvis to the urinary bladder is produced by
A. ciliary action in the renal pelvis. B. suction from the urinary bladder. C. peristalsis of the ureters. D. hydrostatic pressure from the small intestine. E. contraction of the detrusor muscle.
The ability of certain cells to mobilize in response to changes in their chemical environment is called ________.
Fill in the blank(s) with the appropriate word(s).
The presence of skin blood vessels diminishes the effectiveness of the skin as an insulator
Indicate whether the statement is true or false
Which of the following hair colors is the result of a decrease in melanin?
A. Red B. White C. Brown D. Auburn E. Black