Which of the following is unique to prokaryotes?
a. UTRs in mRNA
b. introns
c. polysomes connected to DNA
d. use of aminoacyl-tRNA synthetases
e. translocation during translation
C
Biology & Microbiology
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Malpighian tubules in land-dwelling arthropods excrete ________
a. uric acid paste b. ammonia-rich fluid c. feces d. excess water
Biology & Microbiology
Euglenoids live in freshwater; a __________ rids
them of excess water. Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
The number of species within a community is usually greatest when
A) no disturbance occurs. B) a low frequency of disturbance occurs. C) an intermediate frequency of disturbance occurs. D) a high rate of disturbance occurs.
Biology & Microbiology
Which one of the following terms applies to the phylum Arthropoda?
A. deuterostome B. diploblastic C. coelomate D. radial symmetry E. Parazoa
Biology & Microbiology