Invertebrates – True or false

Invertebrates do not have bones. Instead, many are supported by exoskeletons. Those living in aquatic environments often rely on a hydrostatic skeleton, which is a fluid-filled cavity surrounded by muscles, providing structural support.

What is the primary characteristic of invertebrates regarding their skeletal structure?

What supports many invertebrates instead of bones?

How are sea-dwelling invertebrates supported?

Can you explain the difference between exoskeletons and hydrostatic skeletons?

What is a hydrostatic skeleton?