Fact 1: Chordates have a complete digestive system and a closed circulatory system.

Fact 2: Because reptiles are vertebrates, they are chordates.

Given the two facts above, answer the question "What have a complete digestive system and a closed circulatory system?" with the following options: 
- viruses
 - reptiles
 - phytoplankton
 - mammals
 - bacteria
 - graptolites
 - humans
 - elephants


 

  reptiles       