2. If biological life on earth was seeded by other civilizations in the cosmos (panspermia).
That merely make the universe its own designer - it doesn't mean there is no designer.
2. If biological life on earth was seeded by other civilizations in the cosmos (panspermia).
If it was an intentional act on the part of those civilizations, that makes them the designers - again, this doesn't mean there is no designer. And if it wasn't an intentional act on their part, what sense does it make to call it "design" in the first place? "Design" implies an act of will, not an accident ;)
I'm sure we can all spot the designer in both of those possibilities. I think you mean to say that this designer is not, necessarily, the God of the Bible.