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PHYLUM PORIFERA MEANS “PORE BEARING”
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Invertebrate GroupsSimplest animals
Contains the greatest number of animal species
Most found in water Do not have a backbone
Includes sponges, cnidarians, flatworms, roundworms,
annelids (segmented worms), mollusks, arthropods, &
echinoderms
CLASSIFICATION SCHEME
KINGDOMPHYLUM
CLASSORDER
FAMILYGENUS
SPECIES
PHYLUMPORIFERA
MEANS “PORE
BEARING”
PHYLUM
MEANS “STINGING
CELLS”
CNIDARIA
PHYLUMNEMATODA
“ROUNDWORM”
MEANSPINWORMS
HOOKWORMS
TRICHINELLA
PHYLUMPLATYHELMINTHESMEANS
“FLATWORMS”PLANARIAN
PHYLUMMOLLUSCA
MEANS-SOFT-BODIED
CLASSGASTROPODA
MEANS:STOMACH-FOOTED
CLASSBIVALVIA MEANS:
TWO-SHELLED
SCALLOP
CLASSCEPHALOPODA
MEANS:
HEAD-FOOTED
PHYLUMANNELIDA
MEANS: SEGMENTED
PHYLUM
ARTHROPODA
MEANS:JOINTED APPENDAGES
PHYLUMECHINODERMA
MEANS SPINY-SKINNED
• -poda - footed• Bi- two• Echino- spiny• Poly- many• -derma - skin• Cephalo- head• Gastro- stomach• -valvia - shell• Pori- pores