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Moluscus and Arthropods

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Moluscus and Arthropods

Postby Blackrose » Sun Jul 17, 2005 11:02 am

Hello people,
Well,I am 17-yr-old girl.I am preparing for my pre medical examination.I would like to get some idea about Phylums.
What are Moluscus and Arthropods?
I would be very thankful to you for helping me.
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Postby mith » Sun Jul 17, 2005 2:10 pm

Mollusks

(Science: zoology) One of the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve.

Formerly the Brachiopoda, Bryzoa, and Tunicata were united with the Lamellibranchiata in an artificial group called Acephala, which was also included under Mollusca. See Molluscoudea.

See our dictionary also for arthropods. I didn't know medical examinations tested phylums...
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Postby kandarp shah » Sun Jul 17, 2005 5:45 pm

mithrilhack wrote:Mollusks

(Science: zoology) One of the grand divisions of the animal kingdom, including the classes Cephalopoda, Gastropoda, PteropodaScaphopoda, and Lamellibranchiata, or Conchifera. These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve.

Formerly the Brachiopoda, Bryzoa, and Tunicata were united with the Lamellibranchiata in an artificial group called Acephala, which was also included under Mollusca. See Molluscoudea.

See our dictionary also for arthropods. I didn't know medical examinations tested phylums...


wow........
17 years old and preparing for pre-med.........what year did u graduate from high school??????????
good luckkkkkkkkkk.
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Postby Dr.Stein » Mon Jul 18, 2005 5:31 am

Hm, this sounds interesting. Could you tell me the relationship between your pre medical examination and the Molluscs and Arthropods things? I am starting to do a research in Immunobiology using mollusc species. Maybe we can do something together or whatever... :wink:
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Postby PetaPal » Thu Oct 27, 2005 3:12 pm

Arthropoda is the largest phylum and mollusca is the second largest phylum.........arthropoda include
subphylum trilobita
subphylum chelicerata
class merostomata-horseshoe crabs
class arachnida - spiders,scorpions,ect.
subphylum crustacea-crabs,shrimp,lobster
subphylum uniramia
class chilopoda-centipede
class diplopoda-millipede
class insecta - insects

Phylum mollusca include...
class monoplacophora
class polyplacophora - chitons
class scaphopoda - tusk or tooth shells
class gastropoda - snails
class bivalvia - clams, muscles, oysters
class cephalopoda - squid, nautilus, octopus

hope that helps
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Postby February Beetle » Thu Oct 27, 2005 4:58 pm

They are two awesome phyla! yay. :lol:
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Man in civilization surveys the creature through the glass of his knowledge and sees thereby a feather magnified and the whole image in distortion. - Henry Benson
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ok...

Postby 123Herpatology » Thu Oct 27, 2005 8:03 pm

look up the discussion on rollie pollies lol, you can get a good veiw of a giant arthropod muahahah, perhaps that's what mithrill looks like in the morning? Only kidding. Pre med+isopod/mollusks....this does not compute
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