Echinoderm

usgb/ɪˈkaɪ.nə.dɜrm/
noun

A marine animal that has a hard, spiny skin, is radially symmetrical, and belongs to the class Echinodermata, including starfish and sea urchins.

Starfish are a well-known example of an echinoderm.
Visual representation of "echinoderm" - A marine animal that has a hard, spiny skin, is radially symmetrical, and belongs to the class Echinodermata, including starfish and sea urchins.

Often appears as...

  • echinoderm species
  • echinoderm anatomy

Usage tips

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marine biology, echinodermata, marine ecosystems

Definition 1 of 2
Visual representation of "echinoderm"
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Key Features

Echinoderms are known for their unique radial symmetry and water vascular system.

Illustration for Key Features
Starfish and sea cucumbers display unusual adaptations that allow them to thrive in different sea environments.
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Evolutionary Significance

Echinoderms are crucial for understanding marine evolution and biodiversity.

Illustration for Evolutionary Significance
Studying echinoderms can provide insights into the evolution of other marine life.
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Ecosystem Role

Echinoderms play important roles in marine ecosystems as predators and prey.

Illustration for Ecosystem Role
Some echinoderms help maintain the balance of marine food webs.
Visual representation of the word "Echinoderm"

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