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

Biology & Microbiology

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The wood of conifers consists mostly of tracheids

____________________ Indicate whether the statement is true or false.

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Which of the following are actual mutualistic partnerships that involve a protist and a host organism?

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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).

Biology & Microbiology