Blood glucose concentration rises after a meal and stimulates the pancreas to release the hormone insulin. Insulin travels in the blood and stimulates the uptake of glucose by body cells from the bloodstream, thus reducing blood glucose concentration. This is an example of ________.
A. set point adjustment
B. positive feedback
C. negative feedback
D. dynamic equilibrium
E. integration control
Answer: C
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a. penis b. testes c. vas deferens d. scrotum
Which of the following is not a component of the cytoskeleton?
A. Microfilaments B. Microtubules C. Actin D. Intermediate filaments E. Cilia
The section of the renal tubule closest to the Glomerular capsule is the
a) nephron loop b) collecting duct c) distal convoluted tubule d) proximal convoluted tubule
When the oxygen content of the blood becomes too low, the ________ releases ________ to stimulate red blood cell production.
A. thyroid gland; thyroxin B. pancreas; insulin C. kidney; erythropoietin D. pituitary gland; follicle-stimulating hormone E. stomach; gastrin