The part of an experiment that changes is
hypothesis
variable
control
experiment

Which of the following is an oxidation-reduction reaction? (pictured below)

If your blood becomes too concentrated with iona, what will happen to the red blood cells

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.