Some people argue that geothermal energy should be the main energy source for the united states. which argument could be used to dispute this idea?
a. geothermal power releases carbon dioxide.
b. geothermal power can be used only in certain areas.
c. geothermal power causes air pollution.
d. geothermal power is a nonrenewable resource.

List two modern organisms that have pentameral symmetry

Depending on the organism the number of in a cell may change

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?