Female monotremes lack a uterus and vagina.
Monotremes include the duckbill platypus.
Female duckbill platypus lack a uterus and vagina.
Which parts do female duckbill platypus lack?
Options:
1. uterus and vagina
2. Chlorophyll
3. Epidermis
4. a cuticle
5. epidermis and dermis
6. four limbs
7. fur and fat
8. critical organs