Through evolution, the hindlimbs of cetaceans have been modified, eventually becoming

a. flippers.
b. tail.
c. non-existent.
d. flukes.
e. enlarged.


C

Biology & Microbiology

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rRNA is (select all that apply):

A. associated with ribosomes. B. the least abundant RNA in the cell. C. the most abundant RNA in the cell. D. relatively consistent in sequence between organisms. E. considerably variable in sequence between organisms.

Biology & Microbiology

Which of the following is not a structural polysaccharide?

A) glycogen B) peptidoglycan C) cellulose D) chitin E) All of the above are structural polysaccharides.

Biology & Microbiology

The most abundant plankton are the:

a. phytoplankton. b. bacterioplankton. c. viriplankton. d. zooplankton. e. macroplankton.

Biology & Microbiology

ATP contains ____

a. alanine b. arginine c. phosphate d. tyrosine e. glucose

Biology & Microbiology