Vertebrates vs Invertebrates

Vertebrates vs. invertebrates are two major categories of animals based on the presence or absence of a backbone or spinal column.
Vertebrates are animals with a backbone or spinal column, exhibiting bilateral symmetry, having an endoskeleton made of bone or cartilage, and typically possessing a complex nervous system and closed circulatory system.
Invertebrates, on the other hand, lack a backbone, can exhibit bilateral or radial symmetry, may have an exoskeleton, and their nervous and circulatory systems can vary greatly
Both vertebrates and invertebrates play important roles in ecosystems and have diverse forms, adaptations, and ecological niches.
They exhibit a wide range of characteristics, behaviors, and life cycles, and contribute to the overall biodiversity and balance of natural ecosystems.