Echinoderms Sam & Jen. Examples of Subgroups Crinoidea –Sea Lillies Asteroidea –Sea Stars Ophiuroidea –Brittle stars Echinodea –Sea Urchins & Sand Dollars.

Slides:

Advertisements

Similar presentations

Phylum Echinodermata.

Advertisements

Vocabulary 0ssicle = protective spines on a sea star Ampulla = a bulb-like sac at the base of a tube foot that functions in movement Bipinnaria =free.

Diversity  Echinodermata means “spiny skin”  Echinoderms usually inhabit shallow coastal waters and ocean trenches  organisms in this class include:

copyright cmassengale

Ch. 38 – Echinoderms  Phylum: Echinodermata Sea stars, sand dollars, brittle stars, & sea cucumbers Marine Usually 5 arms  pentaradial No circulatory,

Phylum Echinodermata Unit 4.

Echinoderms Those spiny skinned critters Intro video.

23.6 Echinoderms KEY CONCEPT Echinoderms are on the same evolutionary branch as vertebrates.

 Approximately 6,000 species.  Moves by means of hundreds of hydraulic, suction cup-tipped appendages and have skin covered with tiny, jaw-like pinchers.

Phylum Echinodermata Sea stars sea lilies sea urchins feather stars

04 June 2015Echinodermata.ppt1 Deuterostome Phyla.

Echinodermata “The spiny skinned animals”. Echinoderms The spiny skinned animals include these Classes: 1.Class Crinoidea - the crinoids or “feather stars”

Echinodermata Olivia Johnson, Andrei Anashkin, Heather Schlesier

Phylum Echinodermata Kingdom Animalia.

Phylum Echinodermata "Spiny Skin" Strangest group in animal kingdom Closest invert relation to the Chordates Endoskeleton just under skin Lack sensory.

Phylum Echinodermata. What is an echinoderm? PHYLUM ECHINODERMATA Members of this phylum have many unusual characteristics. They move by means of hundreds.

“Spiny Skin” ~7,000 species Sea stars, sand dollars, and sea urchins Clip A thin skin covers a hard calcareous platelike exoskeleton.

Echinoderm Classes Asteroidea – Sea Stars : Multiple arms radiating from central disk Tube feet on bottom Ophiuroidea – Brittle Stars: Distinct central.

Echinoderms Section 38.1.

Spiny skin, internal skeleton, water vascular system, and suction cuplike structures called tube feet. Most adults have 5-part radial symmetry. Echinoderms.

Phylum Echinodermata. The Basics Symmetry ▫ All echinoderms have pentaradial symmetry ▫ BUT… they develop from bilateral larvae  Body Openings ▫ Two,

Echinoderms “spiny skinned” Ex: starfish, sea urchins, sea cucumbers, sand dollars.

Echinoderms and Invertebrate Chordates

Echinoderm Review For Quiz & Dissection. Questions #1 What kingdom are starfish in?

Preparation for Dissection.  Phylum Echinodermata, class Asteroidea  Brittle Stars are in the class Ophiuroidea  Sharp spines, radial symmetry, and.

Sea Star, Sea Urchin, Sea Cucumber

Sea stars, sand dollars, and sea urchins Phylum Echinodermata.

SEA STAR DISSECTION.

Phylum Echinoderm. Echinoderm Mostly sessil life Adult has no head or brain Central nervous system with nerves radiating into arms All marine Echinodermata.

Echinoderms Chapter 28. Echinoderm characteristics Spiny skin Tube feet Water vascular system Usually body parts are 5x.

Echinoderms. What are echinoderms? spiny skin internal skeleton water vascular system tube feet.

Phylum Echinodermata Deuterostomia Anus forms from or near blastopore

Phylum Echinodermata ECHINODERMS!. Class Crinoidea Special Characteristics: Mouth Faces Upward and is surrounded by many arms – 600 species –Species include-

Phylum Echinodermata Introduction

Phylum Echinodermata “spiny” “skin”

STARFISH DISSECTION

STARFISH DISSECTION

ECHINODERMS By: Emily Parker and Emma Cribbs. WHAT IS AN ECHINODERM? Echinoderms are invertebrates that have radial symmetry, a spiny skin, a water vascular.

1 Phylum Echinodermata Echinoderms are an ancient group of marine animals, with about 6000 living species -Characterized by deuterostome development and.

Spiny Skin. Summary of phyla characteristics Where do they live: Marine What kind of symmetry do they have: Adult – radial Larval – bilateral List 5 classes.

Echinoderms IN: 137. I. General Characteristics 1.Phylum Echinodermata- “spiny skinned” 2.Have bumpy exoskeletons covered with spiny skin (made from calcium.

Phylum Echinodermata Introduction. There are ______ characteristics of echinoderms. All echinoderms have: Spiny skin An internal skeleton A five part.

Echinoderm review. On the following slides with pictures, try to: name the organism Give the Class for the organism State the number of species in the.

Echinoderms copyright cmassengale. deos/4880E0EA-1EA5-42A4-83DA- 299F3921DCDD?hasLocalHost=falsehttps://app.discoveryeducation.com/learn/vi.

Echinoderms Ch  Phylum ECHINODERMATA  Spiny Skin  First Phlya with an INTERNAL skeleton  ENDOSKELETON: formed from hardened plates of Calcium.

Echinoderms. Diversity  Echinodermata means “spiny skin”  Echinoderms usually inhabit shallow coastal waters and ocean trenches  organisms in this.

Phylum Echinodermata.

Phylum Echinodermata “Spiny – skin”

Chapter 29 Section 1 Echinoderms

Starfishes, sea urchins, sea cucumbers

Phylum Echinodermata The Echinoderms: Sea Stars, Brittle Stars, Sand Dollars, Sea Urchins, Sea Cucumbers, Feather Stars, & Sea Daisies.

Echinoderms picture of Crinoidea, also know as a sea lilly Thu Truong.

Ch. 40 – Echinoderms Phylum: Echinodermata

sea stars, sand dollars, and sea urchins

sea stars, sand dollars, and sea urchins

copyright cmassengale

Echino= Spiny Derm = Skin

Kingdom Animalia Phylum Echinodermata The Spiny Skins

Echinoderms have radial symmetry.

Phylum Echinodermata “Spiny – skin”.

Advanced Life Science Rainier Jr/Sr High School Mr. Taylor

ECHINODERMS Phylum Echinodermata.

Echinoderms Echinoderms have spiny skin and an internal skeleton.

Jack, Jacob, Kylie Period 2

Presentation transcript:

Echinoderms Sam & Jen

Examples of Subgroups Crinoidea –Sea Lillies Asteroidea –Sea Stars Ophiuroidea –Brittle stars Echinodea –Sea Urchins & Sand Dollars Holothuoidea –Sea Cucumbers Blastoidea –Blastoids Star Fish Sea Lilly Sea Urchin

Body Systems Circulatory –none Excretory –Diffusion through tube feet, anus, or skin gills(no kidneys) Nervous –Nerve ring(circles mouth) & radial nerve(from nerve ring down each are) Reproductive –External Fertilization Sperm and eggs released into water –Asexual (regeneration) Can lose a ray to escape from predators and regrow it Tube Feet

Characteristics Multicellular w/o cell walls Heterotroph –Mouths located on oral(underside) of body Pentaradial Symmetry –5 rays(arms) branching from central body Deuterostome –Anus develops then mouth

More characteristics Pedicellariae –Tiny, jaw-like pinchers on skin Protection & self cleaning Dermal Endoskeleton –Hard, spiny or bumpy –Made of calcium carbonate plates Called ossicles

Water Vascular System Hydraulic system that operates under water pressure –Allows for movement, gas exchange, capture of food, excretion –Parts: Tube feet & Ampullae –Water enters through madreporite Acts as filter

Water Vascular System

Body Cavity True Coelom(body cavity) –Fluid inside bathes organs –Distributes nutrients & oxygen Sea Cucumber Brittle Stars