The locations of molecules a and b at the beginning of the experiment are shown. which statement best describes what was observed when the setup was examined 20 minutes later?
1. molecule a remained inside the artificial cell and molecule b remained outside. 2. only molecule a was found both inside and outside the artificial cell.
3. only molecule b was found both inside and outside the artificial cell.
4. both molecules a and b were found inside and outside the artificial cell.

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. show the flow of energy in the following ecosystem by labeling each organism's link in the food chain. click once to select a label. click again to place the label in the correct location.