SSC CHSL 2024 PYQ — Question 37

The correct answer is option 4 i.e. They possess a backbone and an internal skeleton.

Invertebrates are animals that lack a backbone (spine) and an internal skeleton made of bone. Instead, many invertebrates have exoskeletons, like insects, or soft bodies, like worms and jellyfish. The presence of a backbone and internal skeleton is characteristic of vertebrates, not invertebrates. Invertebrates include a wide variety of species, such as arthropods, molluscs, and coelenterates.