Arock that forms at or near earth's surface from the cooling of lava is a(n) rock.
a. organic
b. volcanic
c. chemical
d. fragmental

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

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.

Define adaptation. why do organisms adapt? give an example.