How many of you out there that saw X-Men: Evolution think that Apocalypse wasn't immortal yet? I don't think he demonstrated it yet and was instead preserved by the Eye of Ages for thousands of years.
The only mutant that even demonstrated a degree of longevity was Danielle Moonstar, and that was because she was in a state of hibernation for over two years, preserving her until she could be found and rescued by the X-Men.
Anyone care to express their opinions on Apocalypse's possible immortality?