In mammals, which of the following governs both
the thirst mechanism and the hormonal action that
affects the amount of water excreted in the urine?
a. adrenal cortex
b. adrenal medulla
c. anterior pituitary
d. hypothalamus
e. all of these
Answer: d
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There is an influx of which ion into the synaptic knob triggering the vesicles containing neurotransmitter to move towards the presynaptic membrane
A) calcitonin. B) calcitriol. C) calmodulin. D) calcium E) calcitropin.
The events of the first week after fertilization are defined as ________________
Fill in the blank(s) with the appropriate word(s)
In yeast, START triggers the progression from G1 to S. Which of the following are involved in regulating START?
a. Nutrients b. Mating factors c. Cell size d. All of the above
High levels of the fungus Batrachochytrium dendrobatidis were found in a local pond. What do you predict will be the consequence of this fungus?
A. Vegetation levels will decline drastically. B. Lichen populations will increase around the pond. C. Since this is a major pollutant in sewage wastewater, an investigation into the source of the fungus must be undertaken. D. Frog populations will decline. E. Humans in the surrounding area will be vulnerable to pneumonia.