Describe the major land biome where you live. How have human activities changed the landscape and how has this affected native species? Include specific examples.
Calcitonin
a. promotes the absorption of calcium from the gastrointestinal tract.
b. promotes osteoclast activity in the bones.
c. reduces calcium excretion by the kidneys.
d. reduces extracellular calcium ion levels.
e. increases blood calcium levels.
The location of the testes and epididymides in the scrotum
a. allows more room for other organs in the abdominal cavity.
b. keeps these organs close to the penis.
c. provides a temperature that is suitable for normal sperm development.
d. keeps them isolated from the accessory glands of the system.
e. helps to protect them.
Which of the following fluid compartments contains the largest volume of water?
a. plasma
b. interstitial compartment
c. intracellular compartment
d. extracellular compartment
e. lymph
Elevated blood pressure under resting conditions results in increased urinary output because
a. baroreceptors signal the hypothalamus to increase ADH secretion.
b. elevated blood pressure stimulates renin secretion.
c. the amount of angiotensin II formed is increased.
d. aldosterone levels increase.
e. baroreceptors signal the hypothalamus to decrease ADH secretion.
Which of the following pressures tends to force fluid from the glomerulus through the filtration membrane into Bowman’s capsule?
a. tubular pressure
b. capsular pressure
c. colloid osmotic pressure
d. glomerular capillary pressure
e. None of these choices is correct
Aldosterone targets cells in the
a. proximal convoluted tubule.
b. loop of Henle.
c. distal convoluted tubule.
d. glomerulus.
e. collecting duct.
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