Do seeds need oxygen?

I'm thinking of buying one of those "garden in a can" sealed heirloom
seed, WTSHTF collections...

Some folks that offer the collections, proudly state they add oxygen
absorbers to promote long storage...  others claim the seeds need
oxygen, so they specifically state they DO NOT add said O2 absorbers.

Who is correct?  I'd guess that since seeds are baby (embryonic)
plants, and given that 'inhale' CO2, and 'exhale' O2, they wouldn't
need oxygen, especially if stored in a freezer.  Course, I'd hate to
guess wrong and lose a Victory Garden to dumbassery.










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"I don't know any straight-talking Republicans, do you?  
I can't get a straight answer out of any Republicans.  
I Don't know what they're talking about"  -  Bill O'Reilly