Phylum Echinodermata Flashcards
What does the name “Echinoderm” mean?
“Spiney Skin”
What is the water vascular system used for?
Locomotion
What class are sea stars in?
Asteroidea
What kind of symmetry do sea stars have?
Pentaradial symmetry
What phylum is the sea stars in?
Phylum Echinodermata
Where is the Great Barrier Reef located?
Australia
What is causing the death of the reef?
The Crown of Thorns
How many arms does The Crown of Thorns have?
10-14 arms
What is the natural predator of the starfish?
The Triton Snail
What is the class called with Urchins and Sand Dollars?
Class Echinoidea
Organisms in the Class Echinoidea have ______ spines and no _____.
elongated; arms.
What do organisms in the Class Echinoidea move with?
Tube feet
What class have more of commercial value?
Class Echinoidea
What organism is in the Class Holothuroidea?
Sea Cucumbers
What do sea cucumbers use for defense?
Red anal tubes
Are sea cucumbers herbivore, carnivore, and saprovore?
Saprovore
What is the largest echinoderm?
Sea cucumbers
What is the nerve cord support for Phylum Chordata?
Notochord
What subphylum has the sea squirt in it?
Subphylum Urochordata
What subphylum has the lancelet in it?
Subphylum Cephalochordata
What subphylum contains vertebrates in it?
Subphylum Verterbrata
What’s another name for Sea Squirts?
Tunicates
What’s the shape of the body called for Subphylum Cephalochordata?
A “Lancelet”
What is the earliest fish known as?
Ostracoderms
