The profundal zone is indicated by
a. A.
b. B.
c. C.
d. D.
e. none of these.
Answer: d
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Four of the five nitrogen-containing bases listed
below are bases used to construct DNA. Select the exception. a. cytosine b. adenine c. thymine d. guanine e. uracil
Under the influence of antidiuretic hormone, you would expect to see an increase in ________
A) plasma volume B) blood pressure C) urine volume D) sodium reabsorption
Low blood pressure would result in all of the following except:a
a reduction in glomerular hydrostatic pressure. b. a reduction in filtrate formation. c. a reduction in urine formation. d. a reduction in the number of filtration slits. e. a stimulation of the rennin-angiotensin-aldosterone pathway.
What is the difference between free and attached ribosomes?
A) Free ribosomes are located in the cytoplasm, whereas attached ribosomes are embedded on the endoplasmic reticulum. B) Free ribosomes are readily "used up" by the cell and are replaced frequently, whereas attached ribosomes remain functional for the lifetime of the cell. C) Free ribosomes produce proteins, whereas attached ribosomes produce carbohydrates. D) Free ribosomes produce proteins that are exported from the cell, whereas attached ribosomes make proteins for mitochondria and chloroplasts.