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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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Book recommendation for exam

... locomotion, shell diversiy; general features and life history of Lamellidens, Pila and Sepia, torsion and detorsion in gastropods. 11. Echinodermata : Feeding, respiration, locomotion larval forms; general features and life history of Asterias. 12. Protochordata : Origin of chordates; ...

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by bertstare
Sun Oct 21, 2012 2:19 pm
 
Forum: Zoology Discussion
Topic: Book recommendation for exam
Replies: 3
Views: 4756

I just dont understand...

... Which is highly evolved. So If we take evolutionary classification into consideration Platyhelminthes follows annelid, arthropods, Molluscs, echinodermata and finally chordata! If that is what evolution of animals... How did tapeworm existed till now with out either man or pig! Is it a modification ...

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by rohith003
Sun Feb 07, 2010 8:26 am
 
Forum: Evolution
Topic: I just dont understand...
Replies: 11
Views: 5010

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: 135
Views: 163478

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: 23
Views: 46954

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: 43
Views: 53407
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