You are presented with the question "Which of the following  animals is NOT an invertebrate?" and the following answer choices: 
- shrimp
 - orchids
 - gecko
 - sheep
 - Schwinn
 - jellyfish
 - praying mantis
 - Birds

Now knowing that invertebrates are animals that lack a vertebral column, or backbone and geckos have backbones and are reptiles, choose the best answer.


 

   gecko      