Which cancer-causing agent inserts foreign DNA into cells making them cancerous?

a. parasites
b. viruses
c. mast cells
d. radiation
e. bacteria


ANSWER: b

Biology & Microbiology

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Groundwater is water:

a. that runs over the ground and drains into a specific waterway b. in the ocean c. in lakes and rivers d. stored in ground containers such as man-made reservoirs e. in soil and aquifers

Biology & Microbiology

Algal blooms deplete the water of

a. oxygen. b. carbon dioxide. c. nitrogen. d. phosphorus. e. calcium.

Biology & Microbiology

Protostomes exhibit radial cleavage

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

When two different microbes work together to degrade a substance that neither can degrade alone, it is called

a. a redox reaction. b. syntrophy. c. symbiosis. d. reductive dechlorination.

Biology & Microbiology