echinoderms. echinoderms means spiny skin means spiny skin
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ECHINODERMSECHINODERMS
ECHINODERMSECHINODERMS
Means spiny skinMeans spiny skin
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
SEA CUCUMBERSEA CUCUMBER
SAND DOLLARSAND DOLLAR
SEA URCHINSEA URCHIN
SEA URCHINSEA URCHIN
http://www.racerocks.com/racerock/http://www.racerocks.com/racerock/archives/vidpurpleurchin2a.htmarchives/vidpurpleurchin2a.htm
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
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
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
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
ECHINODERMSECHINODERMS
Usually have 5 arms around a Usually have 5 arms around a central diskcentral disk
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)
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
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
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
ECHINODERMSECHINODERMS
Have a nervous system, but no brainHave a nervous system, but no brain
SEA STARSSEA STARS
Common name=star fishCommon name=star fish
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
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)
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
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
SEA STARSSEA STARS
Nervous system=nerve ring and Nervous system=nerve ring and nerves radiating out from ringnerves radiating out from ring
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
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
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
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
SEA STARSEA STAR
TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal
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
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 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
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
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
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
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)
SEA STAR FEEDINGSEA STAR FEEDING
SEA STAR CLEANING SEA STAR CLEANING STOMACHSTOMACH
OTHER ECHINODERMSOTHER ECHINODERMS
SEA CUCUMBER-shaped like SEA CUCUMBER-shaped like cucumbercucumber
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
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
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
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
OTHER ECHINODERMSOTHER ECHINODERMS
SEA URCHINS-large spines, look SEA URCHINS-large spines, look like prickly burrlike prickly burr
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
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
IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood
IMPORTANCE OF IMPORTANCE OF MOLLUSKS/ECHINODERMOLLUSKS/ECHINODER
MSMS FoodFood used at one time as money (clams)used at one time as money (clams)
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
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.
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
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
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
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