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 ...
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 ...
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 ...
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) ...
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 ...
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. ...
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. ...
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
... (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 ...
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.