kingdom animalia kingdom animalia how many organisms are there in the world?
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KINGDOM ANIMALIAKINGDOM ANIMALIA
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How many organisms are How many organisms are there in the world?there in the world?
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– 250,000 plants250,000 plants– 750,000 750,000
insectsinsects– 43,000 43,000
vertebratesvertebrates 4200 mammals4200 mammals 9000 birds9000 birds 6300 reptiles6300 reptiles 4200 4200
amphibiansamphibians 18,000 bony 18,000 bony
fishesfishes 900 900
cartilaginous cartilaginous fishes and fishes and jawless fishesjawless fishes
1.5 million known 1.5 million known speciesspecies
on earth on earth
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CHARACTERISTICSCHARACTERISTICS
EUKARYOTICEUKARYOTIC MULTICELLULARMULTICELLULAR HETEROTROPHIC (by ingestion)HETEROTROPHIC (by ingestion) MOVE AT SOME POINT IN LIFEMOVE AT SOME POINT IN LIFE DIGEST FOOD TO GET DIGEST FOOD TO GET
NUTRIENTSNUTRIENTS LACK CELL WALLSLACK CELL WALLS
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TRENDS IN ANIMAL TRENDS IN ANIMAL EVOLUTIONEVOLUTION
CELL SPECIALIZATIONCELL SPECIALIZATION CEPHALIZATIONCEPHALIZATION EARLY DEVELOPMENTEARLY DEVELOPMENT BODY SYMMETRYBODY SYMMETRY BODY CAVITY FORMATIONBODY CAVITY FORMATION
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CELL SPECIALIZATIONCELL SPECIALIZATION
CELLS FORM TISSUESCELLS FORM TISSUES– EPITHELIAL (skin, lining of cavities)EPITHELIAL (skin, lining of cavities)– CONNECTIVE (bone, blood)CONNECTIVE (bone, blood)– MUSCULAR (heart, biceps)MUSCULAR (heart, biceps)– NERVOUS (brain, nerves)NERVOUS (brain, nerves)
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CEPHALIZATIONCEPHALIZATION
CONCENTRATION OF SENSE CONCENTRATION OF SENSE ORGANS AND NERVE CELLS AT ORGANS AND NERVE CELLS AT FRONT END OF BODYFRONT END OF BODY
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EARLY DEVELOPMENTEARLY DEVELOPMENT FERTILIZATION FORMS A ZYGOTEFERTILIZATION FORMS A ZYGOTE BLASTULA (hollow ball of cells)BLASTULA (hollow ball of cells) GASTRULA (stage when layers that GASTRULA (stage when layers that
produce adult tissues form) produce adult tissues form) GERM LAYER GERM LAYER
FORMATIONFORMATION
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GERM LAYERSGERM LAYERS
ECTODERMECTODERM
ENDODERM ENDODERM
MESODERMMESODERM
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GERM LAYERSGERM LAYERS ECTODERMECTODERM
– Covers surface of embryoCovers surface of embryo– Forms outer covering & CNSForms outer covering & CNS
ENDODERM ENDODERM – Innermost germ layerInnermost germ layer– Forms lining of digestive tract, liver, lungsForms lining of digestive tract, liver, lungs
MESODERMMESODERM– Located b/w ectoderm & endodermLocated b/w ectoderm & endoderm– Forms muscles & most organsForms muscles & most organs
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2 TYPES OF DEVELOPMENT2 TYPES OF DEVELOPMENT PROTOSTOMEPROTOSTOME
SS– mouth forms mouth forms
from the from the opening opening (blastopore) of (blastopore) of the gastrula the gastrula
DEUTEROSTOMEDEUTEROSTOMESS– anus forms from anus forms from
the opening the opening (blastopore) of (blastopore) of the gastrula the gastrula during during developmentdevelopment
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BODY SYMMETRYBODY SYMMETRY
Animal’s body plans are Animal’s body plans are adapted for how they get their adapted for how they get their foodfood
they may be motile (move) or they may be motile (move) or sessile (don’t move)sessile (don’t move)
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3 TYPES OF BODY 3 TYPES OF BODY SYMMETRYSYMMETRY
Asymmetrical-no symmetry (ex, Asymmetrical-no symmetry (ex, sponge)sponge)
Bilateral- body plan in Bilateral- body plan in which single line can which single line can divide body into 2 divide body into 2
equal partsequal parts Radial-body plan in which body Radial-body plan in which body
parts repeat around center of bodyparts repeat around center of body
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ANATOMICAL TERMSANATOMICAL TERMS
Dorsal- top or backDorsal- top or back Ventral- bottomVentral- bottom Anterior- head end that goes Anterior- head end that goes
firstfirst Posterior- tail end that followsPosterior- tail end that follows Lateral- along the side Lateral- along the side
(lengthwise)(lengthwise)
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ANATOMICAL TERMSANATOMICAL TERMS
DorsalDorsal
AnteriorAnterior
PosteriorPosterior
VentralVentral
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BODY PLANS BODY PLANS OR BODY CAVITY FORMATIONOR BODY CAVITY FORMATION
ACOELOMATE- no body cavity b/w ACOELOMATE- no body cavity b/w digestive tract and outer body walldigestive tract and outer body wall
ex. Platyhelminthes (flatworms)ex. Platyhelminthes (flatworms)
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BODY PLANS BODY PLANS OR BODY CAVITY FORMATIONOR BODY CAVITY FORMATION
PSEUDOCOELOMATE- slight body PSEUDOCOELOMATE- slight body cavity between the mesoderm and cavity between the mesoderm and endodermendoderm
Ex. Nematoda (roundworms)Ex. Nematoda (roundworms)
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BODY PLANS BODY PLANS OR BODY CAVITY FORMATIONOR BODY CAVITY FORMATION
COELOMATE- body cavity forms COELOMATE- body cavity forms and cushions organs, allows for and cushions organs, allows for growth of organs.growth of organs.
Ex. Annelids (earthworm)Ex. Annelids (earthworm)
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FEEDING HETEROTROPHSFEEDING HETEROTROPHS
HERBIVORES- eat vegetation HERBIVORES- eat vegetation such as plantssuch as plants
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FEEDING HETEROTROPHSFEEDING HETEROTROPHS
CARNIVORES- eat other CARNIVORES- eat other animalsanimals
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FEEDING HETEROTROPHSFEEDING HETEROTROPHS
OMNIVORES- feed on both OMNIVORES- feed on both vegetation & other animalsvegetation & other animals
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FEEDING HETEROTROPHSFEEDING HETEROTROPHS
FILTER FEEDERSFILTER FEEDERS- - feed by feed by straining tiny floating plantsstraining tiny floating plants
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FEEDING HETEROTROPHSFEEDING HETEROTROPHS
DETRITUS FEEDERSDETRITUS FEEDERS- - feed on tiny feed on tiny bits of decaying matter bits of decaying matter
Sea Cucumber
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FEEDING HETEROTROPHSFEEDING HETEROTROPHS
PARASITESPARASITES- - feed on living feed on living organisms usually destroying or organisms usually destroying or injuring the host organisminjuring the host organism
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2 MAIN GROUPINGS OF 2 MAIN GROUPINGS OF ANIMALSANIMALS
INVERTEBRATESINVERTEBRATES
– 95% of animal 95% of animal speciesspecies
– No backboneNo backbone
VERTEBRATESVERTEBRATES
– 5% of animal 5% of animal speciesspecies
– Contains Contains backbonebackbone
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Animals - InvertebratesAnimals - Invertebrates
Phylum ProiferaPhylum Proifera– Sponges, primitive filter feedersSponges, primitive filter feeders
Phylum CnidariaPhylum Cnidaria– Jellyfish, corals, sea anemonesJellyfish, corals, sea anemones
Phylum MolluscaPhylum Mollusca– Bivalves - scallops, oysters, mussels, clamsBivalves - scallops, oysters, mussels, clams– Gastropods – snails, slugsGastropods – snails, slugs– Cephalopods – squids, octopiCephalopods – squids, octopi
Phylum EchinodermataPhylum Echinodermata– Sea urchins and sea starsSea urchins and sea stars
Phylum ArthropodaPhylum Arthropoda– Spiders, scorpions, crabs, shrimp, insects, Spiders, scorpions, crabs, shrimp, insects,
millipedes, and moremillipedes, and more
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Animals - VertebratesAnimals - Vertebrates
50,000 vertebrates50,000 vertebrates 2 groups2 groups
– Jawless forms (Class Agnatha)Jawless forms (Class Agnatha) Hagfishes, lampreysHagfishes, lampreys
– Jawed forms – most of the animals we Jawed forms – most of the animals we knowknow
Condrichthyes – cartilaginous fishes, sharks, Condrichthyes – cartilaginous fishes, sharks, raysrays
Osteichthyes – bony fishesOsteichthyes – bony fishes Amphibia – salamanders, frogs, toadsAmphibia – salamanders, frogs, toads Reptilia – snakes, lizards, turtles, crocodilesReptilia – snakes, lizards, turtles, crocodiles Aves – birdsAves – birds Mammalia - mammalsMammalia - mammals
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Animals – Vertebrate Animals – Vertebrate ClassesClasses
CondrichthyesCondrichthyes
www.flmnh.ufl.edu/fish/Education/bioprofile.htm
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Animals – Vertebrate Animals – Vertebrate ClassesClasses
OsteichthyesOsteichthyes
www.flmnh.ufl.edu/fish/Education/bioprofile.htm
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Animals – Vertebrate Animals – Vertebrate ClassesClasses
AmphibiaAmphibia
www.natureserve.org
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Animals – Vertebrate Animals – Vertebrate ClassesClassesReptiliaReptilia
www.natureserve.org
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Animals – Vertebrate Animals – Vertebrate ClassesClasses
AvesAves
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Animals – Vertebrate Animals – Vertebrate ClassesClasses
MammaliaMammalia