What are the roles of the recBCD genes?
What will be an ideal response?
They function in bacterial recombination.
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Antibiotics can destroy bacteria because they interfere with the production of ____________
in the bacterial cell.
a. cell walls b. DNA c. ribosomes d. More than one of these answers is correct
Heavy rains cause water speed in a river to increase and the river to overflow its banks. A scientist who has studied the river wants to determine the effects of this rain event on the river's ecological community. How could the scientist safely investigate these effects?
a) by sampling organisms directly during and after the rain event b) by sampling organisms directly only after the rain event c) by setting out equipment to measure water flow during the rain event d) by taking pictures during and after the rain event
Marine Biology can best be described as:
What will be an ideal response?
Fibroblasts scattered among many elastic fibers.
What will be an ideal response?