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Phylum Echinodermata
n/a
32
Biology
Undergraduate 1
11/03/2014

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Term
[image]
Definition
Crinoidea: Sea lilies and feather stars
Term
[image]
Definition
Echinoidea: Sea urchins & sand dollars
Term
[image]
Definition

Holothuroidea: Sea cucumbers

 
Term
[image]
Definition
Ophiuroidea: Brittle stars
Term
[image]
Definition
Asteroidea: Sea stars
Term
What Phylum did we study?
Definition
Echinodermata
Term
Traits of Asteroidea
Definition
open ambulacral grooves, short rigid arms
Term
Traits of Ophiuroidea
Definition
closed ambulacrul grooves, long flexible arms
Term
Traits of Crinoidea
Definition
feather-like pinnules, cirri (for holding onto rocks), U-shaped gut
Term
Echinoidea
Definition
no arms, test formed by fused ossicles, Aristotle's Lantern
Term
Holothuroidea
Definition
reduced ossicles = soft bodies, multi-purpose cloaca (respiration/feeding/defense)
Term
Common name of Asteroidea
Definition
Star Fish (Starry Ones)
Term
Common name of Ophiuroidea
Definition
Brittle Stars (Snake like Ones)
Term
Common name of Crinoidea
Definition
Sea Lilies, Feather Stars (Lily-Like ones)
Term
Common name of Echinoidea
Definition
Sea Urchines, Sand Dollars (Spiny Ones)
Term
Common name of Holothuroidea
Definition
Sea Cucumbers (Whole Ones)
Term
What are the Ancestral traits of Echinodermata.
Definition
eukaryotic, triploblastic, coelomate, complete digestive tract
Term
Derived traits of Echinodermata.
Definition
endoskeleton made of ossicles! pentaradial symmetry! regenerating limbs! water vascular system! tube feet!
Term
The difference Protostome vs. Deuterostome.
Definition
determined by the ultimate fate of the first blastopore - whether it develops into the mouth (Protostomes) or the anus (Deuterostomes)
Term
What is a blastula
Definition
A hollow ball of cells
Term
What is a blastopore
Definition
first opening of the digestive tube that develops in the embryo
Term
What Phylum are only deuterstomes
Definition
Echinodermata and Chordata are the ONLY deuterostomes
Term
What is an Oral side
Definition
The bottom side
Term
What is an Aboral side
Definition
The top side
Term
Economic Roles of Echinodermata
Definition
Fridge Magnets
Term
Which Class has a U-shaped gut
Definition
Crinoidea
Term
Which Class can move faster - Asteroidea or Ophiuroidea? Why?
Definition
Ophiuroidea, Stacked Ossicles
Term
Which Class contains the sea urchins and sand dollars?
Definition
Echinodermata
Term
Which Class(es) use filter-feeding?
Definition
Crinoidea
Term
Which Class' members are all active predators?
Definition
Asteroidea
Term
What are some ways sea cucumbers can defend themselves?
Definition
What are some ways sea cucumbers can defend themselves?
Term
What are some ways sea cucumbers can defend themselves?
Definition
Expel sticky tubules
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