In which direction is the pacific plate moving in relation to the north american plate?

How do you name a compound with more than two elements?

The response is the basis for vaccination. primary secondary tertiary none of the above

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.