echinoderms. echinoderms means spiny skin means spiny skin
TRANSCRIPT
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ECHINODERMSECHINODERMS
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ECHINODERMSECHINODERMS
Means spiny skinMeans spiny skin
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ECHINODERMSECHINODERMS
Means spiny skinMeans spiny skin include sea stars, sea cucumbers, include sea stars, sea cucumbers,
sea urchins and sand dollarssea urchins and sand dollars
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SEA CUCUMBERSEA CUCUMBER
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SAND DOLLARSAND DOLLAR
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SEA URCHINSEA URCHIN
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SEA URCHINSEA URCHIN
http://www.racerocks.com/racerock/http://www.racerocks.com/racerock/archives/vidpurpleurchin2a.htmarchives/vidpurpleurchin2a.htm
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ECHINODERMSECHINODERMS
Means spiny skinMeans spiny skin include sea stars, sea cucumbers, include sea stars, sea cucumbers,
sea urchins and sand dollarssea urchins and sand dollars ENDOSKELETON-internal skeletonENDOSKELETON-internal skeleton
made of spinesmade of spines
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ECHINODERMSECHINODERMS
Means spiny skinMeans spiny skin include sea stars, sea cucumbers, include sea stars, sea cucumbers,
sea urchins and sand dollarssea urchins and sand dollars ENDOSKELETON-internal skeletonENDOSKELETON-internal skeleton
made of spinesmade of spines spines made of calcium carbonatespines made of calcium carbonate
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ECHINODERMSECHINODERMS
Means spiny skinMeans spiny skin include sea stars, sea cucumbers, include sea stars, sea cucumbers,
sea urchins and sand dollarssea urchins and sand dollars ENDOSKELETON-internal skeletonENDOSKELETON-internal skeleton
made of spinesmade of spines spines made of calcium carbonatespines made of calcium carbonate covered in thin layer of skincovered in thin layer of skin
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ECHINODERMSECHINODERMS
Means spiny skinMeans spiny skin include sea stars, sea cucumbers, include sea stars, sea cucumbers,
sea urchins and sand dollarssea urchins and sand dollars ENDOSKELETON-internal skeletonENDOSKELETON-internal skeleton
made of spinesmade of spines spines made of calcium carbonatespines made of calcium carbonate covered in thin layer of skincovered in thin layer of skin
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ECHINODERMSECHINODERMS
Usually have 5 arms around a Usually have 5 arms around a central diskcentral disk
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ECHINODERMSECHINODERMS
Usually have 5 arms around a Usually have 5 arms around a central diskcentral disk
RADIALLY symmetrical-radiate RADIALLY symmetrical-radiate around a central point (like spokes around a central point (like spokes of a tire)of a tire)
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ECHINODERMSECHINODERMS
Usually have 5 arms around a Usually have 5 arms around a central diskcentral disk
RADIALLY symmetrical-radiate RADIALLY symmetrical-radiate around a central point (like spokes around a central point (like spokes of a tire)of a tire)
live only in the oceanlive only in the ocean
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ECHINODERMSECHINODERMS
Usually have 5 arms around a Usually have 5 arms around a central diskcentral disk
RADIALLY symmetrical-radiate RADIALLY symmetrical-radiate around a central point (like spokes around a central point (like spokes of a tire)of a tire)
live only in the oceanlive only in the ocean no well defined headno well defined head
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ECHINODERMSECHINODERMS
Usually have 5 arms around a central Usually have 5 arms around a central diskdisk
RADIALLY symmetrical-radiate RADIALLY symmetrical-radiate around a central point (like spokes of around a central point (like spokes of a tire)a tire)
live only in the oceanlive only in the ocean no well defined headno well defined head circulatory, respiratory and excretory circulatory, respiratory and excretory
systems missingsystems missing
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ECHINODERMSECHINODERMS
Have a nervous system, but no brainHave a nervous system, but no brain
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SEA STARSSEA STARS
Common name=star fishCommon name=star fish
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SEA STARSSEA STARS
Common name=star fishCommon name=star fish range from 1cm to 1 m in diameterrange from 1cm to 1 m in diameter
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SEA STARSSEA STARS
Common name=star fishCommon name=star fish range from 1cm to 1 m in diameterrange from 1cm to 1 m in diameter made of central disk and 5 tapered made of central disk and 5 tapered
RAYS (arms)RAYS (arms)
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SEA STARSSEA STARS
Common name=star fishCommon name=star fish range from 1cm to 1 m in diameterrange from 1cm to 1 m in diameter made of central disk and 5 tapered made of central disk and 5 tapered
RAYS (arms)RAYS (arms) CENTRAL DISK-area of mouth and CENTRAL DISK-area of mouth and
stomachstomach
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SEA STARSSEA STARS
Common name=star fishCommon name=star fish range from 1cm to 1 m in diameterrange from 1cm to 1 m in diameter made of central disk and 5 tapered made of central disk and 5 tapered
RAYS (arms)RAYS (arms) CENTRAL DISK-area of mouth and CENTRAL DISK-area of mouth and
stomachstomach NERVE RING-surrounds mouthNERVE RING-surrounds mouth
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SEA STARSSEA STARS
Nervous system=nerve ring and Nervous system=nerve ring and nerves radiating out from ringnerves radiating out from ring
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SEA STARSSEA STARS
Nervous system=nerve ring and Nervous system=nerve ring and nerves radiating out from ringnerves radiating out from ring
WATER VASCULAR SYSTEM-used WATER VASCULAR SYSTEM-used for movement and getting foodfor movement and getting food
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SEA STARSSEA STARS
Nervous system=nerve ring and Nervous system=nerve ring and nerves radiating out from ringnerves radiating out from ring
WATER VASCULAR SYSTEM-used WATER VASCULAR SYSTEM-used for movement and getting foodfor movement and getting food SIEVE PLATE-water entersSIEVE PLATE-water enters
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SEA STARSSEA STARS
Nervous system=nerve ring and Nervous system=nerve ring and nerves radiating out from ringnerves radiating out from ring
WATER VASCULAR SYSTEM-used WATER VASCULAR SYSTEM-used for movement and getting foodfor movement and getting food SIEVE PLATE-water entersSIEVE PLATE-water enters STONE CANAL-tube leading from sieve STONE CANAL-tube leading from sieve
plateplate
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SEA STARSSEA STARS
Nervous system=nerve ring and nerves Nervous system=nerve ring and nerves radiating out from ringradiating out from ring
WATER VASCULAR SYSTEM-used for WATER VASCULAR SYSTEM-used for movement and getting foodmovement and getting food SIEVE PLATE-water entersSIEVE PLATE-water enters STONE CANAL-tube leading from sieve plateSTONE CANAL-tube leading from sieve plate Ring canal-surrounds central diskRing canal-surrounds central disk RADIAL CANALS-extend down each ray from RADIAL CANALS-extend down each ray from
stone canalstone canal AMPULLA-forms suctionAMPULLA-forms suction
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SEA STARSEA STAR
TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal
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SEA STARSEA STAR
TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal hollow cylinders that act as suction hollow cylinders that act as suction
disksdisks
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SEA STARSEA STAR
TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal hollow cylinders that act as suction hollow cylinders that act as suction
disksdisks help in movementhelp in movement
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SEA STARSEA STAR
TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal hollow cylinders that act as suction hollow cylinders that act as suction
disksdisks help in movementhelp in movement
Sea stars eat mollusksSea stars eat mollusks
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SEA STARSEA STAR
TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal hollow cylinders that act as suction hollow cylinders that act as suction
disksdisks help in movementhelp in movement
Sea stars eat mollusksSea stars eat mollusks pry open shellspry open shells
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SEA STARSEA STAR
TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal hollow cylinders that act as suction hollow cylinders that act as suction
disksdisks help in movementhelp in movement
Sea stars eat mollusksSea stars eat mollusks pry open shellspry open shells turns stomach inside out through its turns stomach inside out through its
mouthmouth
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SEA STARSEA STAR
TUBE FEET-connected to radial canalTUBE FEET-connected to radial canal hollow cylinders that act as suction diskshollow cylinders that act as suction disks help in movementhelp in movement
Sea stars eat mollusksSea stars eat mollusks pry open shellspry open shells turns stomach inside out through its mouthturns stomach inside out through its mouth inserts stomach into shell, starts digestion inserts stomach into shell, starts digestion
right awayright away
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SEA STARSSEA STARS
REGENERATION-ability to regrow REGENERATION-ability to regrow lost parts (ex. Arms)-central disk has lost parts (ex. Arms)-central disk has to remainto remain
SKIN GILLS-gas exchange (in SKIN GILLS-gas exchange (in addition to tube feet)addition to tube feet)
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SEA STAR FEEDINGSEA STAR FEEDING
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SEA STAR CLEANING SEA STAR CLEANING STOMACHSTOMACH
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA CUCUMBER-shaped like SEA CUCUMBER-shaped like cucumbercucumber
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA CUCUMBER-shaped like SEA CUCUMBER-shaped like cucumbercucumber mouth on one end, tentacles all aroundmouth on one end, tentacles all around
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA CUCUMBER-shaped like SEA CUCUMBER-shaped like cucumbercucumber mouth on one end, tentacles all aroundmouth on one end, tentacles all around anus on other endanus on other end
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA CUCUMBER-shaped like SEA CUCUMBER-shaped like cucumbercucumber mouth on one end, tentacles all aroundmouth on one end, tentacles all around anus on other endanus on other end ejects internal organs when attackedejects internal organs when attacked
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA CUCUMBER-shaped like SEA CUCUMBER-shaped like cucumbercucumber mouth on one end, tentacles all aroundmouth on one end, tentacles all around anus on other endanus on other end ejects internal organs when attackedejects internal organs when attacked regenerates lost partsregenerates lost parts
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA URCHINS-large spines, look SEA URCHINS-large spines, look like prickly burrlike prickly burr
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA URCHINS-large spines, look SEA URCHINS-large spines, look like prickly burrlike prickly burr use spines to moveuse spines to move
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OTHER ECHINODERMSOTHER ECHINODERMS
SEA URCHINS-large spines, look SEA URCHINS-large spines, look like prickly burrlike prickly burr use spines to moveuse spines to move
SAND DOLLARS-flat and smooth-SAND DOLLARS-flat and smooth-small spinessmall spines
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IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood
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IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood used at one time as money (clams)used at one time as money (clams)
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IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood used at one time as money (clams)used at one time as money (clams) shells are soldshells are sold
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IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood used at one time as money (clams)used at one time as money (clams) shells are soldshells are sold make jewelry etc.make jewelry etc.
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IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood used at one time as money (clams)used at one time as money (clams) shells are soldshells are sold make jewelry etc.make jewelry etc. pearlspearls
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IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood used at one time as money (clams)used at one time as money (clams) shells are soldshells are sold make jewelry etc.make jewelry etc. pearlspearls farmsfarms
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IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood used at one time as money (clams)used at one time as money (clams) shells are soldshells are sold make jewelry etc.make jewelry etc. pearlspearls farmsfarms fertilizerfertilizer