Which of the following is true about multicellular organisms' cells? a They are all identical so the organism doesn't reject them b They are specialized so they can carry out unique functions. c They are all identical so the organism is able to perform life functions d They are specialized so they do not infect other organisms in the area. Can somebody please help me

Competition occurs between species when

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?

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite