Which of the following lists the earth’s layers in order from hottest to coldest in temperature? a. mantle, crust, inner core, outer core b. outer core, mantle, inner core, crust c. inner core, outer core, mantle, crust d. crust, mantle, outer core, inner core

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra

Which structure in the cardiovascular system connect arteries to veins?

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.