In a majority of land ecosystems, most energy in producers flows directly to ____.
A. decomposers
B. other plants
C. detritivores
D. herbivores
E. carnivores
Answer: C
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Refer to the graph above. If the myelin fibers were stripped from this membrane, you would expect the action potential cycle to go
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A) much faster than depicted in the graph.
B) much faster than normal but not peak at 30 mV.
C) slower than depicted in the graph.
D) much slower than normal but peak much higher than 30 mV.
E) none of the above
During RNA processing a(n) _____ is added to the 5' end of the RNA.
a. 3' untranslated region b. a long string of adenine nucleotides c. 5' untranslated region d. coding segment e. modified guanine nucleotide
In ________, proteins on the surface of the sperm are not able to bind to proteins on the surface of the egg.
A. gametic isolation B. mechanical isolation C. temporal isolation D. behavioral isolation
All of the following are true for Ciliates except the following:
A. Have a macronucelus B. Unicellular C. Move by Flagella D. Example is Paramecium