In medical studies where a new drug is tested, The control group would be asked to take a pill (or treatment) that looks/tastes just like the real thing, but would not be told whether they have the
actual drug or not. The experimental group would receive the real drug. This "sugar" pill that looks like the real drug but is not is called a

Fake pill
Control pill
Experimental
Placebo

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.