👉 Non-vertebrates are organisms that do not have a backbone or spinal cord, and therefore lack the ability to move and breathe. Examples of non-vertebrates include: 1. Dinosaurs: The most famous non-vertebrates are dinosaurs, which lived during the Mesozoic Era (about 65 million years ago). 2. Echinoderms: These are a group of animals that have skeletons made up of modified exoskeletons, and they were once covered in scales or
