Yes! They are part of a species called monotreme or "one opening." They use this opening for waste, sex, and where the reptile like eggs come from.
No. Platypuses are mammals, and all mammals reproduce sexually, not asexually.
Platypuses reproduce just once a year.
Platypuses reproduce once a year.
Yes: platypuses must mate in order to reproduce.
Mosquitos reproduce sexually.
Sexually of course.
Birds reproduce sexually.
Salmon reproduce sexually.
bunnies reproduce sexually
Armadillos reproduce sexually.
Centipedes reproduce sexually.
Monkey reproduce sexually.