Invertebrates are animals that lack a vertebral column, or backbone.
Geckos have backbones and are reptiles.
Geckos are not invertebrates.
Which of the following  animals is NOT an invertebrate?
Options:
1. shrimp
2. orchids
3. gecko
4. sheep
5. Schwinn
6. jellyfish
7. praying mantis
8. Birds