Old man's beard (Usnea trichodea) and yellow Evernia lichens are sensitive to elevated levels of ____
a. sulfur dioxide
b. nitrogen oxides
c. nitrate
d. sunlight
e. fluoride salts
ANSWER: a
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Members of this group typically consist of amoeboid cells surrounded by a hard outer shell through
which cytoplasmic projections extend. a. rhizarians b. archaeplastids c. unikonts d. euglenoids e. opisthokonts
The almost complete loss of the American chestnut tree to the chestnut blight fungus had __________
ecological impact on the moderately diverse Appalachian woodlands of which it was formerly a part. a. little b. great c. moderate d. undetectable e. detectable.
Select the correct sequence of structures that inulin (a filtered, non-absorbed compound) will travel through in the urinary system.
a. Renal artery, proximal tubule, distal tubule, loop of Henle, collecting duct, bladder b. Renal artery, Bowman's capsule, proximal tubule, pericapillary network, renal vein c. Renal artery, afferent arteriole, proximal tubule, loop of Henle, distal tubule, collecting duct, ureter, bladder, urethra d. Renal artery, afferent arteriole, efferent arteriole, Bowman's capsule, loop of Henle, collecting duct, ureter, bladder, urethra
Mitosis ensures that each somatic cell has
What will be an ideal response?