Classifying animals as to the presence of backbone
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Transcript of Classifying animals as to the presence of backbone
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CLASSIFYING ANIMALS AS TO THE PRESENCE OF BACKBONE
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VERTEBRATES
ANIMALS WITH BACKBONES ARE CALLED VERTEBRATES. FISHES, AMPHIBIANS, REPTILES, AND MAMMALS ALL HAVE BACKBONES AND THEREFORE CLASSIFIED AS VERTEBRATES
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INVERTEBRATES
ANIMALS WITHOUT BACKBONES ARE CALLED INVERTEBRATES. WORMS, CLAMS, JELLYFISH, FLIES, AND SPIDERS ARE SOME EXAMPLES OF INVERTEBRATES.
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CLASSIFYING THE VERTEBRATES
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MAMMAL
• MOST MAMMALS DO NOT LAY EGGS. THEY GAVE BIRTH TO THEIR YOUNG. THEY FEED THEIR YOUNG WITH MILK PRODUCED IN THE MAMMARY GLANDS.• EXAMPLES ARE DOGS, CATS, COWS, GOATS, PIGS, ELEPHANTS
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DUCK BILLED PLATYPUS MAMMAL THAT LAYS EGG
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BIRDS BIRDS ARE COVERED WITH FEATHERS. THEY LAY EGGS THAT HAVE FIRM SHELLS. ALL BIRDS HAVE ONE PAIR OF FEET AND ONE PAIR OF WINGS.EXAMPLES ARE HENS, EAGLE, HAWK, VULTURE, OSTRICH AND KIWI
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REPTILES
REPTILES HAVE BODIES THAT ARE COVERED WITH SCALES OR PLATES. THEY LAYTHEIR EGGS ON LAND. THEY CAN LIVE ON
LAND AND ON WATER, CROCODILE AND TURTLES ARE EXAMPLES OF REPTILES.
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AMPHIBIANSAMPHIBIANS SUCH AS FROGS AND SALAMANDERS LIVE A DOUBLE LIFE.THEY LIVE PART OF THEIR LIVES WHILE THEY ARE YOUNG IN WATER. WHEN THEY MATURE, THEY LIVE ON LAND TO SURVIVE. ALL AMPHIBIANS LAY EGGS ON WATER.
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FISH MOST FISH ARE COVERED WITH SCALES. SOME ARE EGG LAYERS; OTHERS ARE LIVE BEARES. THEY SPEND ALL OF THEIR LIVES IN WATER. FISH HAVE GILLS WHICH ARE USED FOR BREATHING.
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CLASSIFYING INVERTEBRATES
PHYLUM COMMON NAME
DISTINGUISHING CHARACTERISTICS
PORIFERA SPONGES PORE-BEARING ANIMALS
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PHYLUM COMMON NAME
DISTINGUISHING CHARACTERISTICS
CNIDARIA HYDRAS HOLLOW INTESTINED
ANIMALS
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PHYLUM COMMON NAME
DISTINGUISHING CHARACTERISTIC
S
PLATYHELMINTHES FLATWORMSFLATTENEDELONGATEDWORMLIKEANIMALS
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PHYLUM COMMON NAME DISTINGUISHING CHARACTERISTICS
ANNELIDS EARTHWORMSLEECHES
ELONGATEDWORMLIKE
ANIMALS WITH EXTERNALLY
EVIDENT SEGMENTATION
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PHYLUM COMMON NAME DISTINGUISHING CHARACTERISTICS
MOLLUSK SNAILS, CLAMSSQUIDS
SOFT BODIED ANIMALS USUALLY LIVING IN A SHELL OR EXOSKELETONS
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PHYLUM COMMON NAME DISTINGUISHING CHARACTERISTICS
NEMATODES ROUNDWORMS
ELONGATED, UNSEGMENTED,
WORMLIKE ANIMALS.
THREADLIKE ANIMALS
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PHYLUM COMMON NAME
DISTINGUISHING CHARACTERISTICS
ANTROPHODS
INSECTS CRABS
SPIDERSCENTIPEDES
SEGMENTED ANIMALS WITH
HARDENED OUTER SKELETON AND
JOINTED APPENDAGES
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PHYLUM COMMON NAME
DISTINGUISHING CHARACTERISTICS
ECHINODERMS
STARFISH
SEA URCHINSPINY-SKINNED
ANIMALS