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| Abalone |
| Abalone (Haliotis), genus of primitive marine gastropod MOLLUSCS with over 70 species worldwide. There are 2 species in Canada. The pinto abalone (Haliotis kamtschatkana) also known as the Japanese or northern... |
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| Annelida |
| Annelida is a phylum of segmented worms with a true body cavity (coelom) separating gut from body wall. Annelids probably evolved from unsegmented coelomates which became segmented to allow continuous, active... |
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| Arachnida |
| Arachnida is a large class of chelicerate arthropods (segmented, jointed-limbed animals) including the orders Araneae (SPIDERS), Scorpiones (SCORPIONS), Opiliones (HARVESTMEN), Pseudoscorpiones (PSEUDOSCORPIONS),... |
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| Bacteria |
| Bacteria are microscopic single-celled organisms capable of rapid growth and division. As prokaryotes [Gk, "before nucleus"], bacteria are characterized by the organization of deoxyribonucleic acid... |
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| Barnacle |
| Barnacle, common name for marine INVERTEBRATES of subclass Cirripedia, class Crustacea. Barnacles, the only sessile CRUSTACEANS, have adopted an odd lifestyle: they stand on their heads and kick food into their... |
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