This creature can regenerate from only one ray and one part of their central disk.
What is a sea star?
How is a sea cucumber like a person who talks too much?
They like to spill their guts!
What is the name of the type of feet all echinoderms have?
What are "tube" feet?
I have no eyes and no brain. I have tube feet. Who am I?
An echinoderm!
This is a sea star's favorite food.
What is a bivalve?
This echinoderm usually sleeps by curling up into a tight ball.
What is a basket star?
What do you need if you want to buy an expensive sand castle?
Lots of sand dollars.
This is the name of the kind of symmetry most echinoderms share.
What is "radial" symmetry?
I look like a pincushion. Who am I?
A sea urchin!
Many varieties of this creature eat sand. Yum?
What is the sea cucumber?
This echinoderm's stomach can change shape to fit into small crevices.
What is a sea star?
These pokey creatures can truly tell one another, "Hey, you're looking sharp!"
What is a sea urchin?
This is a proper name for the shell left behind by a dead sea urchin or sand dollar.
What is a test?
I can be small as your fingernail or several feet long. I am shaped like a sausage. Who am I?
A sea cucumber!
Sea otters love to chow down on these echinoderms.
What are sea urchins?
One variety of this creature has long spines that, when touched by a human, can insert into skin and snap off before releasing painful venom.
What is a sea urchin?
How did the starfish and the sea urchin pay for their lunch?
With a sand dollar!
A sea urchin's five special teeth are arranged in a system. What is it called?
What is Aristotle's lantern?
I can drop an arm to escape from a predator. Who am I?
A brittle star!
Sand dollars eat using tiny hairs to move food along what part of their bodies?
What are food grooves?
This creature can use its internal organs into a weapon, gluing a predator's gills or throat shut.
What is a sea cucumber?
What do you call a talented and famous fish?
A starfish.
Echinoderms get their name from the Greek words "echino" and "derma". What do these two words mean?
What are "spiny" and "skin"?
I look like a plant, but I can move about. What am I?
A crinoid!
This creature eats with its feet, using them to pass food along its pinnules to its mouth.
What is a crinoid?