Malpighian tubules are found in
a. annelids.
b. mammals.
c. flatworms.
d. insects.
e. larval mollusks.
D
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________ inhibitors bind the enzyme at a location other than the active site but still interfere with product formation.
Fill in the blank(s) with the appropriate word(s).
What conclusion did the researchers draw from the results of the feeding preference studies?
A. The capsaicin deterred the mice and rats from eating and destroying the seeds. B. The capsaicin deterred the mice and rats from eating and dispersing the seeds. C. The capsaicin deterred the thrashers from eating and destroying the seeds. D. The capsaicin deterred the thrashers from eating and dispersing the seeds.
The atmosphere above which region is known to have a hole in the ozone layer?
a. Antarctica b. eastern North America c. northern Europe d. the western Pacific e. central Asia
What type of infectious agent causes Creutzfeldt-Jakob disease in humans?
A. provirus B. a viroid C. a prion D. a virus