ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

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ECHINODERMS ECHINODERMS

Transcript of ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

Page 1: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

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

Page 9: ECHINODERMS. ECHINODERMS Means spiny skin Means 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 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

Page 47: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

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

Page 49: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

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.

Page 50: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

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

Page 51: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

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

Page 52: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin.

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