What are bacteriophages?
a. a hybrid between a virus and a bacterium
b. viruses that set in as secondary infections after bacteria
c. a classification of viruses that are infected by bacteria
d. a classification of viruses that only infect bacteria
d. a classification of viruses that only infect bacteria
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In higher organisms, successful mating can occur between members of the same
A. genus. B. species. C. class. D. order.
Plant respiration occurs in
a. chloroplasts. b. mitochondria. c. the surrounding air. d. More than one answer is correct.
The waste product of microbial decomposition is converted to what in acidic soils?
A) NH4+ B) NH3 C) NO42- D) NO3-
The veins leading from the lungs to the heart are the ________ veins.
Fill in the blank(s) with the appropriate word(s).