An important indicator of evolutionary relatedness is the
A. nitrogen base sequence of rRNA.
B. size of the bacterial chromosome.
C. size of the periplasmic space.
D. size of the ribosomes.
E. similarities of cell membrane proteins.
Answer: A
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What is the main factor that drives ozone
formation?
a. cloud cover b. rainfall c. time of day d. sunlight e. season
The wood of conifers consists mostly of tracheids
____________________ Indicate whether the statement is true or false.
Which of the following are actual mutualistic partnerships that involve a protist and a host organism?
a. cellulose-digesting gut protists: wood eating termites b. dinoflagellates: reef building coral animals c. trichomonas: humans d. algae: certain foraminferans e. all except that involving humans
The first plants clearly evolved from an organism that, if it existed today, would be classified as a multicellular green ________.
Fill in the blank(s) with the appropriate word(s).