Which of the following organisms utilizes polycistronic mRNAs?

A) E. coli
B) C. elegans
C) mammals
D) choices A and B only
E) all of the above


E) all of the above

Biology & Microbiology

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Walleye pike tend to live in deep waters and feed at night. Northern pike live in shallower waters and feed all day. Which of the following best explains these differences?

A. mutualism B. commensalism C. resource partitioning D. parasitism E. predation

Biology & Microbiology

The percentages of a population at different ages are known as the:a

growth rate. b. age structure. c. biotic potential. d. density. e. fecundity.

Biology & Microbiology

The rate of catalysis is proportional to the concentration of the enzyme

Indicate whether the statement is true or false.

Biology & Microbiology

What typically has to happen before a fruit develops? I) flowering II) pollination III) double fertilization

A) I only B) I and II C) II and III D) I, II, and III

Biology & Microbiology