9 Phyla9 Phylaof theof the

Animal Animal

KingdoKingdomm

Common Animal Common Animal CharacteristicsCharacteristics

Multicellular (many cells)Multicellular (many cells) Eukaryotic (cells contain Eukaryotic (cells contain

nucleus)nucleus) Heterotrophic (must eat)Heterotrophic (must eat) Lack cell wallsLack cell walls MoveMove

Animal PhylaAnimal Phyla 34 total phyla in the kingdom34 total phyla in the kingdom Classifying criteria:Classifying criteria:

Body symmetryBody symmetryLevel of organizationLevel of organization

Types of body Types of body symmetrysymmetry

AsymmetryAsymmetryNo symmetryNo symmetry

Radial symmetryRadial symmetryCircular shape Circular shape

Bilateral symmetryBilateral symmetryIdentical right & left halvesIdentical right & left halves

Levels of Levels of OrganizationOrganization

Cellular: Cellular: Simplest animals are made Simplest animals are made of independent cellsof independent cells

Ex: SpongesEx: Sponges

Levels of Levels of OrganizationOrganization

Tissue:Tissue:Cells work together to form Cells work together to form specialized tissues like specialized tissues like muscle tissuemuscle tissue

Ex: JellyfishEx: Jellyfish

Levels of Levels of OrganizationOrganization

Organs:Organs:Tissues work together to Tissues work together to form organs; that do a form organs; that do a specific job specific job

Ex: Turtles have lungs.Ex: Turtles have lungs.

Phylum PoriferaPhylum Porifera Found only in waterFound only in water Saclike bodies with many Saclike bodies with many

pores for feedingpores for feeding Simplest phylumSimplest phylum AsymmetricalAsymmetrical Organized into CellsOrganized into Cells

Phylum CnidariaPhylum Cnidaria

Have stinging tentaclesHave stinging tentacles Radially symmetricalRadially symmetrical Organized into tissuesOrganized into tissues Ex: Sea anemonesEx: Sea anemones

Phylum Phylum PlatyhelminthesPlatyhelminthes

Mostly parasiticMostly parasitic Bilaterally symmetricalBilaterally symmetrical Complex tissues: nerves and Complex tissues: nerves and

brainbrain Ex: Flatworms &Ex: Flatworms &TapewormsTapeworms

Phylum NematodaPhylum Nematoda Bilateral SymmetricalBilateral Symmetrical Organized into TissuesOrganized into Tissues Ex: Ex: Round worms & Hook Round worms & Hook

worms & Pinwormsworms & Pinworms

Phylum MolluscaPhylum Mollusca Soft body, occasional hard Soft body, occasional hard

shellshell Organized on the organ levelOrganized on the organ level Ex: Ex: ClamsClams

Phylum AnnelidaPhylum Annelida Segmented (divided sections) Segmented (divided sections)

worms worms Ex: EarthwormsEx: Earthworms

Phylum ArthropodaPhylum Arthropoda Have jointed appendagesHave jointed appendages Have an exoskeleton & moltHave an exoskeleton & molt Biggest phlumBiggest phlum Ex: Ex: ALL insectsALL insects

Phylum Phylum EchinodermataEchinodermata

Spiny skinSpiny skin Radially symmetricalRadially symmetrical Well developed organs Well developed organs Can regenerateCan regenerate Ex: Ex: StarfishStarfish

Phylum ChordataPhylum Chordata Most advanced animalsMost advanced animals Internal skeleton and spinal cordInternal skeleton and spinal cord Bilaterally symmetricalBilaterally symmetrical ExampleExample

Fish (bony and cartilage)Fish (bony and cartilage) AmphibiansAmphibians ReptilesReptiles MammalsMammals BirdsBirds

All reproduce sexuallyAll reproduce sexually