They come under 8 phyla.
1.Porifera(sycon,euplectella,hyalonema,euspongia)
2.Coelentrata(obelia,physalia,hydra,aurelia,corals,sea anemone)
3.Platyhelminthes(planaria,lukeworm,tapeworm)
4.Aschelminthes(round worm,hookworm,filarial worm)
5.Annelida(earthworm,leech,sandworm)
6.Arthropoda(all insects)
7.Mollusca(snail,octopus,mussel)
8.Echinodermata(starfish,sea lily,sea cucumber)
There are thousnds of them.They are countless.So many species!
2006-10-28 18:08:05
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answer #1
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answered by @! 3
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Liberals
2006-10-28 18:04:33
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answer #2
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answered by Anonymous
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Sometimes it seem like my cat don't have a backbone.
2006-10-28 17:53:08
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answer #3
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answered by ♥c0c0puffz♥ 7
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My ex-boss was an "Invertabrate', a true "Jelly fish" or "Segmented worm", or he was just known as "Worm". He'd say one thing, then turn on you in front of the big bosses ! a real "PUKE" !
2006-10-28 17:54:27
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answer #4
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answered by Anonymous
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Total number of invertebrates? No.
2006-10-28 17:46:33
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answer #5
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answered by ? 3
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I'm not sure, but I think one of them lives in the White House right now...
2006-10-28 17:53:42
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answer #6
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answered by Danno 2
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I don't think someone one could give you an Exact number.
2006-10-28 17:51:42
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answer #7
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answered by Anonymous
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millions
2006-10-29 03:28:12
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answer #8
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answered by Anonymous
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