2.Which of these processes in the rock cycle could be happening in the stage labeled 2?A. Folding and mountain buildingB. Changes due to heat and pressureC. Compaction and cementation of weathered sedimentsD. Subduction of an oceanic plate beneath a continental plate3. How does visible light differ from radio waves, microwaves, and the other components of the electromagnetic spectrum?a. Visible light consists of particles, while the other components exist as waves. b.Visible light exists as waves, while the other components exist as particles. c.Visible light has a different range of frequencies and wavelengths. d.Visible light travels at a faster speed

Which of the following statements is true? a. the main cause for speciation is an increase in gene flow. b. organisms that reproduce asexually are not considered part of a species. c. on a tree of life diagram, speciation is shown by the merging of two different lineages. d.the size of the geographic area inhabited by a population can cause speciation.

An ecologist is studying the effects that a population of predators is having on a population of a prey. he used data from the field to produce this graph. which conclusion can draw from the graph?

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?