HELP!Mariana eats an orange. Which statement describes the ultimate source of the energy that her body receives when she digests the orange? Organic matter, rich soil in which the orange tree grows, and adequate water all work together to generate the energy that can be obtained from the orange.

The orange tree obtains energy from the nitrogen and other compounds in fertilizer.

The light energy that originates from the sun provides the energy to grow oranges, which contain macromolecules.

The orange contains the energy-rich nutrients that it draws from the soil.

Which best describes the digestive system of arthropods? a incomplete, two openings b complete, one opening c two-way, one opening d one-way, two openings

Name the types of burns one can get and which structures of the integument are damaged

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?