The study of E. coli led scientists to new experimental designs for studying operons. How did scientists begin studying operons? They began to study cell division of cells under a microscope to determine how operons worked. They began testing different chemicals on E. coli to determine the number of operons present. They began reading the genome sequence of organisms to determine the number and organization of operons.

the answer is a) cell division.

hope this !

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.