A metabolic pathway in a bacterium is under the control of an activator protein. This protein is made constitutively and activates transcription by binding to an activator binding site on the DNA, which allows RNA polymerase to bind to the promoter. The sketch below shows the arrangement of genes in the operon for this metabolic pathway. which of the statements below describes the cellular events most likely taking place when the cell needs to shut down this pathway

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.