echinoderms. echinoderms means spiny skin means spiny skin

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ECHINODERMS ECHINODERMS

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

ECHINODERMSECHINODERMS

Page 2: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

ECHINODERMSECHINODERMS

Means spiny skinMeans spiny skin

Page 3: 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

Page 4: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA CUCUMBERSEA CUCUMBER

Page 5: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SAND DOLLARSAND DOLLAR

Page 6: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA URCHINSEA URCHIN

Page 7: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA URCHINSEA URCHIN

http://www.racerocks.com/racerock/http://www.racerocks.com/racerock/archives/vidpurpleurchin2a.htmarchives/vidpurpleurchin2a.htm

Page 8: 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

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

Page 10: 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 covered in thin layer of skincovered in thin layer of skin

Page 11: 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 covered in thin layer of skincovered in thin layer of skin

Page 12: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

ECHINODERMSECHINODERMS

Usually have 5 arms around a Usually have 5 arms around a central diskcentral disk

Page 13: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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)

Page 14: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 15: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 16: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 17: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

ECHINODERMSECHINODERMS

Have a nervous system, but no brainHave a nervous system, but no brain

Page 18: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA STARSSEA STARS

Common name=star fishCommon name=star fish

Page 19: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 20: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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)

Page 21: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 22: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 23: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA STARSSEA STARS

Nervous system=nerve ring and Nervous system=nerve ring and nerves radiating out from ringnerves radiating out from ring

Page 24: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 25: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 26: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 27: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 28: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA STARSEA STAR

TUBE FEET-connected to radial TUBE FEET-connected to radial canalcanal

Page 29: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 30: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 31: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 32: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 33: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 34: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 35: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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)

Page 36: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA STAR FEEDINGSEA STAR FEEDING

Page 37: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

SEA STAR CLEANING SEA STAR CLEANING STOMACHSTOMACH

Page 38: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

OTHER ECHINODERMSOTHER ECHINODERMS

SEA CUCUMBER-shaped like SEA CUCUMBER-shaped like cucumbercucumber

Page 39: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 40: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 41: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 42: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 43: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

OTHER ECHINODERMSOTHER ECHINODERMS

SEA URCHINS-large spines, look SEA URCHINS-large spines, look like prickly burrlike prickly burr

Page 44: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 45: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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

Page 46: ECHINODERMS. ECHINODERMS Means spiny skin Means spiny skin

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)

Page 48: 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

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