Chapter 33 Bio 2 Intervertebrate Echinoderms

Front 1

**What are the two phylum that only are Deuterostomes

Back 1

1)Phylum Chordata
2)Phylum Echinodermata

Front 2

Examples of Echinoderms

Back 2

Starfish, Sea Cucumber,
Sea Urchins, Sand Dollars, Heart Urchins, Basket Stars, Brittle Stars

Front 3

Phylum Echinodermata

Back 3

1)secondary Radial system
(Bilateria at first)
2)**water Vascular System
3)Calcareous endoskeleton(ossicles)
4)Most have Bumps&Spines
5)"Tube feet" (Podia)
6)*All are marine
7)Dioecious, External Fert.

Front 4

What are functions of Sea urchins' spines
(Phylum Echinodermata)

Back 4

For *defense and *Locomation

Front 5

What is functions of "Tube Feet" (Podia) in Phylum Echinodermata

Back 5

For Locomotion, Feeding,
*** Gas Exchange

Front 6

Example for Class Asteroidea
(Give the 1)name, 2)genus)

Back 6

1) Starfish
2) Genus*** Asterias
(Common Atlantic Starfish)

Front 7

Class Asteroidea
(Phylum Echinodermata)

Back 7

-" Starfish " Genus *Asterias
-eat Bivalves molluscs
-can regenerate
(need a bit of center piece)
-Sucker tube system
-"Crown of Thorns"
-**Water Vascular system

Front 8

What is Genus and species of "Crown of Thorns"
in Class Asteroidea,
Phylum Echinodermata

Back 8

**Acanthaster Planci
-> used to wipe out
"Coral polyps"

Front 9

**Water Vascular System
(in Starfish)
->class Asteroidea
(phylum Echinodermata)

Back 9

A system of canal which move water under pressure hydraulic
and it's used for locomotion

Front 10

What is "little spot on Starfish" called

Back 10

" Madreporite"

(Where water ocean enter)

Front 11

The steps of Water Vascular system in starfish

Back 11

1) Water ocean enter Madreporite
2) It pass thru Stone canal, Ring canal,Radial canal, and Lateral canal in orders
3)Then a bowl-like structure called "Ampulla" force water underpressure
7) Water goes into Tube feet or Podia and make it expand
8) Sucker is located on the tip of tube feet

Front 12

"Brittle Stars" is in what class and in what phylum?

Back 12

Class Opiuroidea
(phylum Echinodermata)

Front 13

Class Opiuroidea
(phylum Echinodermata)

Back 13

***Tube feet lack Sucker
-A distinct seperation btw central disk and the arms
-longer, more flexible arms than starfish
-some small lizards can lose their tails, and grow them back again. This ability is "tail autonomy." **Autonomy can occur in Brittle stars too.

Front 14

What is the function of " Autonomy"?

Back 14

Voluntary release of appendage so as to avoid predators

Front 15

What are class and phylum of Sea urchin and Sand dollars?

Back 15

Class Echinoidea
(Phylum Echinodermata)

Front 16

Class Echinoidea
(Phylum Echinodermata)

Back 16

-Sea urchins, Sand dollars
-no arms, but do have 5 rows of tube feet that function in slow movement
-have flatten Oral/Aboral axis(Oral=bottom, Aboral=top)
-complex jaw-like structure

Front 17

What is complex jaw-like structure in Class Echinoidea called? What is its function?

Back 17

"Aristotle's Lanthern"
Used in feeding

Front 18

What are class and phylum of
"Sea lilies"?

Back 18

Class Crinoidea
(Phylum Echinodermata)

Front 19

Class Crinoidea
(Phylum Echinodermata)

Back 19

-Sea lilies
-most are sessile (live attached to the substrate)
-has Crinoid stem

Front 20

What are class and phylum of
" Sea Cucumber"?

Back 20

Class Holothroidea
(Phylum Echinodermata)

Front 21

Class Holothroidea
(Phylum Echinodermata)

Back 21

-Sea cucumber,*Lack of spines
-elongated in their oral–aboral axis
-have reduced endoskeleton
-tube feet around the mouth modified as *"feeding tentacles "

Front 22

Class Holothroidea (cont.1)
(Phylum Echinodermata)

Back 22

-are "Deposit feeders"
-Beche de mer (type of sea cucumber that Asians eat)
-Throw up part of GiIi tract
(Evisceration)
-"Cuvier tubules" used to entangle preys
-"Respiratory Tree"

Front 23

What is the throw up part of GiIi tract called?

Back 23

"Evisceration"

Front 24

What is "Cuvier Tubules"?

Back 24

are long white, pink or red structures that are attached to one, or both, respiratory trees. If Sea cucumber is attacked by a predator it will expel this sticky, stringy mass of tubules

Front 25

What is class and phylum of "Sea Daisies"

Back 25

Class Concentricycloidea
(Phylum Echinodermata)

Front 26

genus of Sea Daisies is

Back 26

*** Genus Xyloplex

found in deep waters off the coasts of New Zealand and the Bahamas.