I would say overproduction. Not sure though. Hope this helps!
Elliptical galaxies. I hope thats correct.
Leukemia can be treated using human stem cells to attack and destroy cancer cells.
The correct answer among the choices listed above is option C. It is important that a plant's phloem extends into its leaves because the phloem <span>collects the sugars made during photosynthesis and carries them around the plant. Hope this answers the question.</span>