Some viruses can carry their genes as ________.

A. DNA
B. RNA
C. protein
D. two of the above
E. all of the above


Answer: E. all of the above

Biology & Microbiology

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In vascular plants, water and dissolved minerals are transported from roots to the stems and leaves by ____

a. sclerenchyma b. phloem c. collenchyma d. parenchyma e. xylem

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Parapodia are characteristic of oligochaetes. Indicate whether the statement is true or false

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The biological species concept declares an organism to be a separate species if it has undergone evolution long

enough for the emergence of statistically unique traits. _____________ Indicate whether the statement is true or false.

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Which of the following activities could lead to a decrease in the genetic diversity in the gene pool of a species? 

A. an increase in the reproductive rate, which results in increased population size B. a decrease in the size of the population from millions to hundreds C. the absence of mutations D. the species switches from asexual reproduction to sexual reproduction

Biology & Microbiology