Anatomy
Sea stars and sea urchins use these for locomotion.
What are tube feet?
The long projections protect sea urchins from predators.
What are spines?
The Phylum that sea urchins, sea stars, and sea cucumbers are in.
What is Echinodermata?
Sea stars eat other animals like clams, oysters, and mussels. This means that they are __________.
What are carnivores?
Echinoderms are only found in this type of water.
What is salt?
The tube feet of echinoderms are controlled by this hydraulic system.
What is a water vascular system?
Sea urchins are negatively phototropic, which means they don’t like sunlight. To help protect themselves from the sun they do this.
What is cover their bodies with rocks, leaves, and other debris?
Unlike humans, Echinoderms do not have a backbone. This means that they are __________ .
Invertebrates
Sea urchins are herbivores. They primarily feed on this.
What is Seaweed/Algae?
Echinoderms have Pentaradial Symmetry. This means that their bodies can be divided into this many equal parts.
What is 5?
A madreporite is found on the surface of sea stars. This is its primary function.
What is to pull water into the sea star's body?
This is the hard shell of a sea urchin or sand dollar.
What is test?
Echinoderms spend the beginning stages of their life as this group of drifting animals.
Zooplankton
Zooplankton and detritus (organic material) are the major food sources of this echinoderm.
What is the sea cucumber?
This species of sea cucumber lives in the Gulf of Maine.
What is the orange-footed sea cucumber (Cucumaria frondosa) ?
Sea stars have them at the end of each arm.
What are eyespots?
Sea stars have the ability to regenerate, which means this.
What is they can regrow their arms?
Strongylocentrosus droebachiensis is the world’s longest scientific name. This is the name of what type of echinoderm.
What is a sea urchin? (The green sea urchin)
Sea stars eat by extending this organ out of its mouth.
What is its stomach?
Humans and other vertebrates have veins in their bodies carrying this. However, echinoderms do not have any.
What is blood?
Echinoderms do not have a hard skeleton, but they have this instead.
What is spiny skin?
Sea cucumbers eviscerate as a defense when they feel threatened. When sea cucumbers eviscerate this means that they do this.
What is push their guts/intestines outside of their bodies?
The Forbes Sea Star and Common Sea Star both live in the Gulf of Maine. They also share the same genus name. This tells us that these animals are__________.
What is closely related?
Sea urchins have this special 5-plated mouth on the underside of their bodies.
What is Aristotle’s Lantern?
This echinoderm has a disk-like body which enables it to burrow under the sand.