The diagram shows a section of a cell membrane that includes a channel protein. The function of this protein is toA. Strengthen the outer boundary of the cell. B. Connect reproductive cells during fertilization. C. Allow certain substances to leave or enter the cell. D. Exchange organelles or chromosomes between specialized cells.

Which process of living things produces water that enters the water cycle

Tides that occur during the new and full moons

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.