Question 12 (5 points) Which of the following improvements contributed to the early popularity of
photography?
shorter exposure times
less-toxic technology
Oprinting on paper
all of the above
Question 13 (5 points)
Saved

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. drag each phase of mitosis to the correct description.