Place the following events in their sequential order:
protein kinase a is activated
glycogen breakdown
epinephrine binds to g-protein-linked receptor
g-protein activates adenylyl cyclase
gtp is exchanged for gdp on the g-protein
atp is converted to camp

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?

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms

In what part of the body does the most muscle activity happen?