Fact 1: Female monotremes lack a uterus and vagina.

Fact 2: Like the echidna, a platypus is a monotreme.

Given the two facts above, answer the question "What does a platypus lack?" with the following options: 
- a cuticle
 - Uterus
 - tail fins
 - Eyes
 - Tail
 - Energy.
 - Energy
 - Heart


 

  Uterus       