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Echinodermata

Echinodermata

(Science: marine biology) phylum of exclusively marine animals. The phylum is divided into 5 classes: the Asteroidea (starfish), the echinoidea (sea urchins), the ophiuroidea (brittle stars and basket stars), the Holothuroidea (the sea cucumbers) and the Crinoidea (sea lilies and feather stars).


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The Colin Leslie Dean species paradox

... reptiles, amphibians). There is also Arthropoda (insects, spiders, crustaceans); Mollusca (snails, squid, clam); Annelida (segmented worms); Echinodermata (starfish, sea urchins) and many, many more. http://en.wikipedia.org/wiki/Species Total number of species (estimated): 7 - 100 millions ...

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by gamila
Wed Jul 15, 2009 12:45 pm
 
Forum: Evolution
Topic: The Colin Leslie Dean species paradox
Replies: 120
Views: 2138

Why do you keep talking about species

... Sarcopterygii Lungfishes Class: Cephalaspidomorphi Jawless Fishes Phylum: Cnidaria Corals and Sea Anemones Class: Anthozoa Class: Hydrozoa Phylum: Echinodermata Sea Stars, Sea Urchins and relatives Class: Asteroidea Sea Stars, Cushion Stars and relatives Class: Echinoidea Sea Urchins, Heart Urchins ...

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by gamila
Mon Jun 29, 2009 5:35 pm
 
Forum: Evolution
Topic: Why do you keep talking about species
Replies: 20
Views: 574

Biology is not a science

... reptiles, amphibians). There is also Arthropoda (insects, spiders, crustaceans); Mollusca (snails, squid, clam); Annelida (segmented worms); Echinodermata (starfish, sea urchins) and many, many more.

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by gamila
Sun Jun 07, 2009 2:15 pm
 
Forum: General Discussion
Topic: Biology is not a science
Replies: 44
Views: 1359

DNA replication, Cell division and Evolution

... Sarcopterygii Lungfishes Class: Cephalaspidomorphi Jawless Fishes Phylum: Cnidaria Corals and Sea Anemones Class: Anthozoa Class: Hydrozoa Phylum: Echinodermata Sea Stars, Sea Urchins and relatives Class: Asteroidea Sea Stars, Cushion Stars and relatives Class: Echinoidea Sea Urchins, Heart Urchins ...

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by gamila
Sun Jun 07, 2009 7:05 am
 
Forum: Evolution
Topic: DNA replication, Cell division and Evolution
Replies: 16
Views: 437

"Twenty questions"-biology game

A worm? Not a worm....but something near that! now that is a clue Echinodermata no Can it survive on land for long periods of time? well, they can if the surface they are on are moist

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by Amrik
Thu Oct 12, 2006 8:43 am
 
Forum: General Discussion
Topic: "Twenty questions"-biology game
Replies: 759
Views: 88714
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