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26 Cards in this Set
- Front
- Back
**What are the two phylum that only are Deuterostomes
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1)Phylum Chordata
2)Phylum Echinodermata |
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Examples of Echinoderms
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Starfish, Sea Cucumber,
Sea Urchins, Sand Dollars, Heart Urchins, Basket Stars, Brittle Stars |
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Phylum Echinodermata
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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. |
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What are functions of Sea urchins' spines
(Phylum Echinodermata) |
For *defense and *Locomation
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What is functions of "Tube Feet" (Podia) in Phylum Echinodermata
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For Locomotion, Feeding,
*** Gas Exchange |
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Example for Class Asteroidea
(Give the 1)name, 2)genus) |
1) Starfish
2) Genus*** Asterias (Common Atlantic Starfish) |
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Class Asteroidea
(Phylum Echinodermata) |
-" Starfish " Genus *Asterias
-eat Bivalves molluscs -can regenerate (need a bit of center piece) -Sucker tube system -"Crown of Thorns" -**Water Vascular system |
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What is Genus and species of "Crown of Thorns"
in Class Asteroidea, Phylum Echinodermata |
**Acanthaster Planci
-> used to wipe out "Coral polyps" |
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**Water Vascular System
(in Starfish) ->class Asteroidea (phylum Echinodermata) |
A system of canal which move water under pressure hydraulic
and it's used for locomotion |
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What is "little spot on Starfish" called
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" Madreporite"
(Where water ocean enter) |
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The steps of Water Vascular system in starfish
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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 |
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"Brittle Stars" is in what class and in what phylum?
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Class Opiuroidea
(phylum Echinodermata) |
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Class Opiuroidea
(phylum Echinodermata) |
***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. |
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What is the function of " Autonomy"?
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Voluntary release of appendage so as to avoid predators
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What are class and phylum of Sea urchin and Sand dollars?
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Class Echinoidea
(Phylum Echinodermata) |
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Class Echinoidea
(Phylum Echinodermata) |
-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 |
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What is complex jaw-like structure in Class Echinoidea called? What is its function?
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"Aristotle's Lanthern"
Used in feeding |
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What are class and phylum of
"Sea lilies"? |
Class Crinoidea
(Phylum Echinodermata) |
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Class Crinoidea
(Phylum Echinodermata) |
-Sea lilies
-most are sessile (live attached to the substrate) -has Crinoid stem |
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What are class and phylum of
" Sea Cucumber"? |
Class Holothroidea
(Phylum Echinodermata) |
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Class Holothroidea
(Phylum Echinodermata) |
-Sea cucumber,*Lack of spines
-elongated in their oral–aboral axis -have reduced endoskeleton -tube feet around the mouth modified as *"feeding tentacles " |
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Class Holothroidea (cont.1)
(Phylum Echinodermata) |
-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" |
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What is the throw up part of GiIi tract called?
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"Evisceration"
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What is "Cuvier Tubules"?
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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
|
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What is class and phylum of "Sea Daisies"
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Class Concentricycloidea
(Phylum Echinodermata) |
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genus of Sea Daisies is
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*** Genus Xyloplex
found in deep waters off the coasts of New Zealand and the Bahamas. |