The Anus.
I'd hazard a guess and say the vagina, if you're talking about mammals.
The penis is the human copulatory organ penetrating device.
The Amplexus is the firm copulatory embrace of amphibians.
A canal is a human buit waterway
A canal is a human buit waterway
Clitellum
yes
Most human females have menstruation periods of between 26 and 32 days in length.
Human females have two X chromosomes (XX) while human males have one X and one Y chromosome (XY). This difference in sex chromosomes determines biological sex and leads to different developmental pathways in males and females.
human body
A very large male copulatory organ.
An aedeagus is a copulatory organ of some male insects.