Echinodermata
... (3) Ophiuroidea – brittle stars, serpant stars (4) Echinoidea – sea urchins, sand dollars (spherical, disk-shaped bodies) (5) Holothuroidea – sea cucumbers (flattened cyclinders wihout arms, mouth surrounded in tentacles) Reproduction - sexual - most species have separate sexes - others are hermaph ...
... (3) Ophiuroidea – brittle stars, serpant stars (4) Echinoidea – sea urchins, sand dollars (spherical, disk-shaped bodies) (5) Holothuroidea – sea cucumbers (flattened cyclinders wihout arms, mouth surrounded in tentacles) Reproduction - sexual - most species have separate sexes - others are hermaph ...
Phylum Echinoderm
... • Mostly sessil life • Adult has no head or brain • Central nervous system with nerves radiating into arms • All marine • Echinodermata – spiny skinned ...
... • Mostly sessil life • Adult has no head or brain • Central nervous system with nerves radiating into arms • All marine • Echinodermata – spiny skinned ...
Echinodermata: Habitat and food source.
... • Gonochoristic- having separate sexes. • Male and female discharge their eggs and sperm into water and that where the eggs are fertilized. • Develops into larva • Settles in seabeds then changes into a miniature adults (metamorphosis) • Click picture for more details. ...
... • Gonochoristic- having separate sexes. • Male and female discharge their eggs and sperm into water and that where the eggs are fertilized. • Develops into larva • Settles in seabeds then changes into a miniature adults (metamorphosis) • Click picture for more details. ...
Echinoderms
... called a endoskeleton – made of harden plates that makes the animal bumpy and irregular texture. ...
... called a endoskeleton – made of harden plates that makes the animal bumpy and irregular texture. ...
Phylum Echinodermata - District Five Schools of
... typically have 5 arms, but in some species, there may be as many as 24 • Two rows of tube feet run along the underside of each arm ...
... typically have 5 arms, but in some species, there may be as many as 24 • Two rows of tube feet run along the underside of each arm ...
No Slide Title - Cal State LA
... - bony ossicles (chunks) or plates develop from mesoderm Water vascular system develops from coelom - powers movement, often using external tube feet - important in local marine ecosystems as herbivores (urchins) and keystone predators (sea stars) ...
... - bony ossicles (chunks) or plates develop from mesoderm Water vascular system develops from coelom - powers movement, often using external tube feet - important in local marine ecosystems as herbivores (urchins) and keystone predators (sea stars) ...
Document
... • Feather like arms used for suspension feeding – Plankton • Tube feet trap planktonic organism • Cilia in ambulacral grooves carry food to mouth • Attach to substrate with stalk • Sessile sea lily • Cup-like body attached to stalk • Can bend stalk and flex/extend arms ...
... • Feather like arms used for suspension feeding – Plankton • Tube feet trap planktonic organism • Cilia in ambulacral grooves carry food to mouth • Attach to substrate with stalk • Sessile sea lily • Cup-like body attached to stalk • Can bend stalk and flex/extend arms ...
Means = _______________________ Sea Stars Sea urchins
... Class _________________ e.g. sea cucumbers a. Elongated ________________________ body b. Reduced ________________________ c. Tube feet modified into _____________________ for______________, _______________ traps food, _________________ feeders Class___________________________ e.g. sea stars a. Mostl ...
... Class _________________ e.g. sea cucumbers a. Elongated ________________________ body b. Reduced ________________________ c. Tube feet modified into _____________________ for______________, _______________ traps food, _________________ feeders Class___________________________ e.g. sea stars a. Mostl ...
Echinoderms
... sea cucumbers belong in this class bodies are soft how they feed: tentacles around the mouth sweep up sediment from the water ...
... sea cucumbers belong in this class bodies are soft how they feed: tentacles around the mouth sweep up sediment from the water ...
Echinoderms
... • Network of canals – run throughout body ending w/tube feet • Varying internal water pressure can extend or contract tube feet • Tube feet end in small suction cups ...
... • Network of canals – run throughout body ending w/tube feet • Varying internal water pressure can extend or contract tube feet • Tube feet end in small suction cups ...
Coelomates: Protostomes and Deuterostomes Protostomes have
... mouth, mosaic development - mollusks, annelids, arthropods Deuterostomes have radial cleavage, the blastopore becomes the anus, regulative development - echinoderms, chordates ...
... mouth, mosaic development - mollusks, annelids, arthropods Deuterostomes have radial cleavage, the blastopore becomes the anus, regulative development - echinoderms, chordates ...
Coelomates: Protostomes and Deuterostomes Protostomes have
... mouth, mosaic development - mollusks, annelids, arthropods Deuterostomes have radial cleavage, the blastopore becomes the anus, regulative development - echinoderms, chordates ...
... mouth, mosaic development - mollusks, annelids, arthropods Deuterostomes have radial cleavage, the blastopore becomes the anus, regulative development - echinoderms, chordates ...
Phylum Echinodermata
... • Gas exchange and excretion occur through cilia-lined sacs called bursae. • 2,000 identified species. • Usually have separate sexes. ...
... • Gas exchange and excretion occur through cilia-lined sacs called bursae. • 2,000 identified species. • Usually have separate sexes. ...
Sea Urchin
... sharp, serve to protect the urchin from predators and aid in locomotion. • The spines can inflict a painful wound on a human who steps on one, but they are not seriously dangerous, and it is not clear that the spines are ...
... sharp, serve to protect the urchin from predators and aid in locomotion. • The spines can inflict a painful wound on a human who steps on one, but they are not seriously dangerous, and it is not clear that the spines are ...
Echinoderms
... tentacles for feeding. Some burrow and capture food while others ingest sand and filter out detritus and ...
... tentacles for feeding. Some burrow and capture food while others ingest sand and filter out detritus and ...
Echinoderms and Chordates
... – Radially symmetrical with medium to long spines – Move via tube feet – Often found on rocky surfaces – Aristotle’s Lantern: ...
... – Radially symmetrical with medium to long spines – Move via tube feet – Often found on rocky surfaces – Aristotle’s Lantern: ...
Echinoderms
... They look a little like flowers, which is where their common name comes from. Sometimes they are called feather stars because of the feathery appearance of their feeding arms. They are attached to the sea floor at some points in their life cycle; at other times they are free-swimming. ...
... They look a little like flowers, which is where their common name comes from. Sometimes they are called feather stars because of the feathery appearance of their feeding arms. They are attached to the sea floor at some points in their life cycle; at other times they are free-swimming. ...
Echinoderm Slideshow
... and they can have up to 21 arms. Their bodies are covered with long, thorn-like spines. When these spines penetrate the skin, chemical irritants are passed from the starfish to the predator. In humans it can cause swelling and a sharp stinging sensation that can take up to a week to subside. Natural ...
... and they can have up to 21 arms. Their bodies are covered with long, thorn-like spines. When these spines penetrate the skin, chemical irritants are passed from the starfish to the predator. In humans it can cause swelling and a sharp stinging sensation that can take up to a week to subside. Natural ...
+ Means = spiny skin Examples: Sea Stars, Sea urchins, Sea
... Eucoelomate (true coelom w/ peritoneum) Similarities to Chordates 1. Deuterostome Embryonic development (mouth develops second) * ...
... Eucoelomate (true coelom w/ peritoneum) Similarities to Chordates 1. Deuterostome Embryonic development (mouth develops second) * ...
Phylum Echnodermata
... – Often pentaradial symmetry, body parts extend from the center along five spokes ...
... – Often pentaradial symmetry, body parts extend from the center along five spokes ...
Chapter 22 - Angelo State University
... • A madreporite, spines and pedicellariae are absent. • The upper surface has a mouth that opens into an esophagus and intestine; it then exits the anus. • Tube feet and mucous nets allow it to feed on small organisms in the ambulacral grooves. • It has a watervascular system, an oral ...
... • A madreporite, spines and pedicellariae are absent. • The upper surface has a mouth that opens into an esophagus and intestine; it then exits the anus. • Tube feet and mucous nets allow it to feed on small organisms in the ambulacral grooves. • It has a watervascular system, an oral ...
Sea urchin
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Sea urchins or urchins (/ˈɜrtʃɪnz/), archaically called sea hedgehogs, are small, spiny, globular animals that, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. About 950 species of echinoids inhabit all oceans from the intertidal to 5000 m deep. The shell, or ""test"", of sea urchins is round and spiny, typically from 3 to 10 cm (1.2 to 3.9 in) across. Common colors include black and dull shades of green, olive, brown, purple, blue, and red. Sea urchins move slowly, and feed on mostly algae. Sea otters, starfish, wolf eels, triggerfish, and other predators hunt and feed on sea urchins. Their roe is a delicacy in many cuisines. The name ""urchin"" is an old word for hedgehog, which sea urchins resemble.
