General Facts
The word Echinoderm means __________ ______.
What is spiny skin?
I am a favorite snack of sea stars.
What are bivalves?
Crinoids are often mistaken for ______________.
What are plants?
What are spines?
A sand dollar has a ___________ shape design on top.
What is a flower?
Name two things that many echinoderms use their tube feet for...
What is tasting, smelling, catching prey, breathing or moving?
Brittle stars are faster than sea stars because they use this to move instead of tube feet.
What are muscles?
I am a crinoid with a stalk and look like a flower.
What is a sea lily?
Sea urchins are a favorite snack of this mammal.
What are sea otters?
Sea cucumbers are important to marine habitats because they help produce clean __________.
What is sand?
Echinoderm bodies extend out from a central point. We call this _______________ _____________________.
What is radial symmetry?
I am a type of brittle star that has branching rays to help me catch plankton.
What is a basket star?
Crinoids have feathery tentacles that they use to catch and eat _______________.
What is plankton?
What is algae?
This is the main defense of a sea cucumber.
What is "spilling its guts"?
Many echinoderms can regrow body parts that are lost. This is called _____________________.
What is regeneration?
Certain species of sea stars are now endangered because of this sickness.
What is sea star wasting disease/syndrome?
The arms of crinoids are called ______________.
What are pinnules?
Too many sea urchins can be detrimental to marine ecosystems because they can destroy ________ forests.
What is kelp?
The skeletal bodies of sea urchins and sand dollars are actually called _____________.
What are tests?
Three main characteristics of echinoderms are that they have: _______, _________, _________.
What is no eyes, no brain, and tube feet?
Sea stars do not have blood, but use this system to transport oxygen and other nutrients through their body.
What is a water vascular system?
Feather stars use these short tentacles to cling to rocks and corals.
What are cirri?
Sea urchins and sand dollars have 5 teeth arranged in this pattern.
What is Aristotle's lantern?
These tiny hairs are what a sand dollar uses to move food to its mouth.