The answer is C because the independent variable is what you change in the experiment and you are changing the concentration of sugar
It is D. <span>Packets of stored energy are converted to chemical energy in glucose.</span>
The eye spot and the chloroplasts work together to help the euglena survive because the eye spot senses the light and the dark. Since euglena need to do photosynthesis in which uses light energy to make usable energy, to get food, the eye spot will tell the euglena where to move in order for it to be able to do photosynthesis.
It is the rib cage (thoracic cage)
