Which organism controls its salt concentration by releasing salt from a structure on the leaf epidermis?
a. Dionaea muscipula
b. Atriplex spongiosa
c. Lathyrusodoratus
d. Phaseolus
e. Quercus suber
ANSWER: b
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Bacterial and archaeal ribosomes are known as ________ ribosomes, based on their sedimentation coefficient.
A. 70S B. 80S C. 50S D. 30S
The sodium-potassium pump is used in
a. facilitated diffusion. b. simple diffusion. c. active transport. d. osmosis. e. bulk flow
Drug toxicity occurs when an antimicrobial drug acts as antigen and stimulates an allergic response.
Answer the following statement true (T) or false (F)
A small island has stable populations of plants and animals, including one species of hawk but no other large predators. A ship docks at the island, and the sailors hunt and kill most of the hawks. What would you expect as an immediate consequence?
A. an increase in the rodents B. an increase in the plants C. an increase in the insects D. a decrease in the plants E. a decrease in the fish