Fact 1: Invertebrates are animals that lack a vertebral column, or backbone.

Fact 2: Invertebrates are just as nutritious as vertebrates.

Given the two facts above, answer the question "What are just as nutritious as animals without backbones?" with the following options: 
- Organic compounds
 - bioaerosols
 - Most plants
 - dinosaurs
 - skunks
 - birds
 - animals with backbones
 - microorganisms


 

       animals with backbones  