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Crustaceans

Crustacean

a shell-covered sea creature - for example crabs and lobsters.


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segmentation in marine invertebrate

Heyo would anyone know of other marine inverts, other than crustaceans and annelid worms, which would show segmentation. Would the chambering of the nautilus shell count by any chance? Thanks

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by Doug207
Mon Jun 13, 2011 10:12 am
 
Forum: Zoology Discussion
Topic: segmentation in marine invertebrate
Replies: 1
Views: 1830

Re: Theories - Origin of Life

... A search of the database with the keyword “propulsion”, for example, produces a range of propulsion mechanisms used by jellyfish, frogs and crustaceans.” Now if Bad design is evidence of randomness as you argue to then do tell What is Good design evidence of? I would say Non-randomness, ...

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by scottie
Fri Apr 22, 2011 6:10 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 562
Views: 929192

Re: Experimental evidence for evolution

... deposits. The Silurian Lingula differs but little from the living species of this genus; whereas most of the other Silurian Molluscs and all the Crustaceans have changed greatly So how is it you think that Darwin's Gradualism is mutually exclusive with Gould's Punctuated Equilibrium. Gould's ...

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by Geokinkladze
Mon Sep 06, 2010 12:01 am
 
Forum: Evolution
Topic: Experimental evidence for evolution
Replies: 103
Views: 179679

Re: Evolution of sexual reproduction

... Familiar examples of basic animal body plans are cnidarians (corals and jellyfish), mollusks (squids and shellfish), arthropods (crustaceans, insects, and trilobites), echinoderms (sea star and sea urchins), and the chordates (animals with backbones), the phylum to which all vertebrates ...

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by jevg
Tue Aug 24, 2010 7:21 pm
 
Forum: Evolution
Topic: Evolution of sexual reproduction
Replies: 29
Views: 33012

what is this?

At the moment I have no idea what those things might be (seeds? some crustaceans in their shells?), but could you be so brutal as to smash one and see what is inside? :)

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by biohazard
Thu Aug 12, 2010 12:19 pm
 
Forum: Zoology Discussion
Topic: what is this?
Replies: 8
Views: 5613
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