Echinoderms: 8 Beautiful Types of Echinoderms You Probably Don't Know

Echinoderms! Echinoderms are invertebrate animals that have pentaradial symmetry, a spiny skin, a water vascular system, and a simple nervous system.

Table of Contents

Echinoderms

The echinoderms are a group of animals that includes starfish, urchins, feather stars, and sea cucumbers. They are simple animals, lacking a brain and complex sensing organs.

They have pentaradial symmetry and a calcareous endoskeleton that may possess pigment cells that give them a wide range of colors, as well as cells that possess toxins.

Echinoderms Vocabulary

Starfish
Brittle Star
Sea Urchin
Sand Dollar
Sea Cucumber
Crinoid
Ophiura Ophiura (Serpent Star)
Sea Lily (Feather Star)

Echinoderms Examples

He could still remember it, a picture of a house and a tree and a sun with rays like a starfish.
The sponge brittle star lives within or near sponges and soft corals in the ocean.
An orthodontist’s dream, an Atlantic wolffish displays the hardware it uses to crush mollusks, shellfish, and sea urchins.
She pulled out a perfect sand dollar she found on a California beach.
If you pick up a sea cucumber, do so with care, for they have an extravagant way of defending themselves.
Crinoids are brought up in trawls from the deep sea several thousand at a time.
Ophiura ophiura or the serpent star is a species of a brittle star in the order Ophiurida.
The sea lily is an order of marine animals referred to as crinoids.
Feather stars are unstalked crinoids that live in both shallow water and the depths of the ocean.
Starfish contains different types of bioactive materials, such as proteins, enzymes, steroidal glycosides, gangliosides, alkaloids, etc.
Results show that the sea cucumber polysaccharide contains SO42-, and is a kind of mucositis sulfate.
A sea urchin is nestled in a coral formation off Bonaire Island.