Plumbing!
Intersex people:
The elephants in the room,
A rare few have both.
Chromosomes!
XX with “man bits,”
and there’s also the reverse;
Or three chromosomes.
Gametes!
Just impractical.
Did you bring a microscope?
What if one makes none?
Ribs!
Counting ribs is odd.
Twenty-four the default,
In men AND women.
Pelvis!
Gynecoid pelvis:
Odds are six out of seven.
Some ladies: Thin hips.
God!
Open to debate:
Did you bring your deity?
No? How does this help?
Culture
Our cultures vary.
Language: Human invention,
Just ask for pronouns.