Phylum Cnidaria Hydra jellyfish coral sea anemones Phylum
- Slides: 73
Phylum Cnidaria Hydra, jellyfish, coral, & sea anemones
Phylum Cnidaria Examples? • Sea anemones • Corals • Sea Pen • Sea Fan • Sea Plume • Hydra • Jelly fish • Portuguese Man o’ War • Box Jelly Fish
I. Body Structure A. Polymorphism = more than one body form 1. Polyp 2. Medusa
B. Polyp • Tube with tentacles around the mouth • Sessile Coral polyp
Polyp (sea anemone)
Mythical Hydra
Polyp (Hydra)
Perseus slays the Gorgon Medusa
C. Medusa • Umbrella shape • Tentacles around mouth • Motile, Free-swimming
• Have D. Tentacles nematocysts (stinging cells) • Coiled thread discharges like a harpoon • Contains neurotoxin • Paralyzes prey Discharged nematocyst
Discharged nematocyst
II. Level of Organization A. Tissue B. No organs
III. Symmetry Radial Compass jellyfish
IV. Habitat A. Aquatic 1. Most Marine 2. Few fresh-water
V. Feeding A. Carnivores Lion’s mane eats (predators) another jelly B. Process of feeding 1. Tentacles sting prey with nematocysts 2. Tentacles grab prey 3. Prey pulled into mouth
Process of feeding 4. Prey stuffed into gastro-vascular cavity (GVC)* 5. GVC makes enzymes, extracellular digestion 6. Undigested food back out mouth *incomplete digestive tract (no anus)
Lion’s mane jellyfish eating
VI. Respiration • Via diffusion • Body is two cell layers thick
VII. Internal Transport Via diffusion
VIII. Excretion • Via diffusion
IX. Response A. No cephalization or nervous system B. Nerve net around mouth
IX. Response C. Sensory cells 1. Chemoreceptors (chemicals) 2. Thigmoreceptors (touch) 3. Photoreceptors (light) Ocelli (eyespots) 4. Statocysts (balance)
X. Locomotion A. Medusa motile, free-swimming B. Polyps sessile Exceptions: 1. Hydra tumbles on tentacles 2. Sea anemones glide on pedal disc
XI. Reproduction 1. Asexual budding from polyps or medusae 2. Sexual a. Medusae release sperm & eggs b. Some monoecious, some dioecious c. Larvae free-swimming
XII. Ecological Role A. Predators and prey B. Neurotoxins in medical research C. Coral – jewelry, building, reefs (surfing!) D. Coral reefs - habitat for many -great biodiversity - protect coastline E. Symbiosis with other organisms
Class Anthozoa: Sea Anemones
Sea Anemones (with sea urchins)
Sea Anemones Clown fish with sea anemone
Clown fish & eggs with sea anemone
Clown fish with sea anemone
Giant Sea Anemone
Rosy Sea Anemone
Class Anthozoa: Corals
Brain Coral
Coral
Colt Coral
Elkhorn Coral
Cabbage Coral
Flower Coral
Feather Coral
Gorgonian Fan Coral
Lamellina Coral
Sun Coral
Subergorgia Coral
Soft Coral
Sea Pen
Sea Fan
Sea Plume
Class Hydrozoa: Green Hydra
Hydra
Brown Hydra with buds
Brown Hydra eating
Hydra eating Daphnia • Hydra eats Daphnia
Class Scyphozoa: True Jellyfish Fried egg jelly
Jellyfish
Jellyfish Red-eyed medusa
Jellyfish
Jellyfish
Jellyfish Lion’s mane
Jellyfish Purple lion’s mane
Upside down Jelly fish
Upside down Jelly fish
Sea Nettle
Jelly and diver
Giant Jelly off Coast of Japan
Beached Jelly fish
Jelly fish Humor
Portuguese Man 0’ War (a Hydrozoan), NOT a true jelly fish
Portuguese Man 0’ War Tentacles of Physalia physalis
Portuguese Man o’ War vs. Box Jelly fish
Class Cubozoa: Box Jellyfish
Chironex fleckeri the Box jelly fish
- Hydra sea anemone sycon coral
- Cnidaria subkingdom
- Viperidae y elapidae
- Immortal jellyfish order
- Portuguese man-of-war location map
- Anemone life cycle
- Characteristics of phylum cnidaria
- Finger like structure in cnidarians
- Obelia medusa slide
- Phylum cnidaria general characteristics
- Kingdom animalia phylum cnidaria
- Filum ctenophora
- Coral reef phylum
- Asymmetrical
- Sea stack diagram
- Yellow sea and east china sea
- Ionian sea vs aegean sea
- What does the sea symbolize in the old man and the sea
- Plt 404
- Rusty duck gun oil
- Hydra minerva
- Hydra cross section
- Afourchamberedheart hydra
- Hydra kernel
- Symmetry in sponges
- Halligan probar
- Hydra iptv
- Hydra dragonvale
- Hydra tutorial
- Hydra
- Hydra penetration testing
- How many heads does a hydra have
- Porifera lab
- Glutinant
- Simetri tubuh hewan
- Hydra neurons
- Nematocystes
- Yale netid lookup
- Hydra beauty gerät
- Hydra repository alternative
- Digestion intracorporal
- Otters phylum
- What is characteristics of jellyfish
- Clade deuterostomia
- Platyhelminthes examples
- Sea urchin phylum
- Red beard sponge
- Sea urchin phylum
- Adaptation of jellyfish
- Shelby arbacheski
- Symmetrein
- Shin kubota
- Animal adaptations for rainforest
- Cnidaria
- Medusa mar menor
- Jellyfish networking data centers randomly
- Jellyfish shoes
- Blue blockers anto
- Coelenterata jellyfish
- White spotted jellyfish scientific name
- Gfp jellyfish
- Box jellyfish
- Box jellyfish
- Cladogram cells with flagella symmetry
- What do jellyfish eat
- Plastic bag vs jellyfish
- Four handed box jellyfish
- Break elephant into syllables
- Anatomy of a jellyfish
- Class scyphozoa
- Total transformation lab
- Jellyfish
- Diplopodes
- Box jellyfish