What is supporting materials in a jellyfish skeleton?

Jellyfish don't have skeletons in the traditional sense like bones. They are made up of mostly water and have a hydrostatic skeleton, which means their body shape is maintained by the pressure of water within their body cavity.

Here's a breakdown of the supporting materials in a jellyfish:

* Mesoglea: This is a jelly-like substance that makes up the bulk of the jellyfish's body. It's mostly water with some collagen fibers and cells. The mesoglea provides structural support and flexibility.

* Ectoderm and Endoderm: These are the outer and inner layers of the jellyfish's body, respectively. They provide protection and contain muscle cells that contract and relax to help the jellyfish move.

* Muscle Cells: These are scattered throughout the mesoglea and ectoderm. They contract to allow the jellyfish to swim, pulse, and capture prey.

* Nerve Net: This is a network of nerves that helps coordinate movements and responses to stimuli.

In summary, jellyfish rely on a combination of water pressure, a jelly-like material (mesoglea), and muscle cells to maintain their shape and move around.