One of the fish in your aquarium dies. Adding which protist to the water would allow you to avoid flushing the dead fish by speeding its decay?
A) an apicomplexan
B) a dinoflagellata
C) an oomycete
D) a ciliate
E) a euglenid
Answer: C
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Which of the following processes takes place in the cytoplasm and involves the transfer RNA (tRNA) mediating the sequential addition of amino acids in a specific sequence that is dictated by the codon sequence of the messenger RNA (mRNA) molecule?
a. Transcription b. Initiation c. Elongation d. Termination
Which combination of conditions would promote the most rapid diffusion across a cell membrane?
a. large molecule, high temperature, large concentration gradient b. large molecule, low temperature, small concentration gradient c. small molecule, low temperature, small concentration gradient d. small molecule, high temperature, large concentration gradient
Oceanic noise pollution from commercial shipping
a. results from large tankers generating lowfrequency sounds. b. may frighten whales. c. may drown out whales’ acoustical signals. d. is a dilemma with no solution that is both easy and inexpensive. e. includes all of these.
The region at which the RNA polymerase binds is the ________ region.
A. coding B. promoter C. leader D. trailer