Phylum Cnidaria Hydra jellyfish coral sea anemones Phylum
- Slides: 72
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
Habitat Aquatic 1. Most Marine 2. Few fresh-water
I. Symmetry Radial Compass jellyfish
II. 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. Respiration • Via diffusion • Body is two cell layers thick
III. Circulation and Internal Transport Via diffusion
IV. 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
V. Excretion • Via diffusion
VI. 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)
VII. Locomotion A. Medusa motile, free-swimming B. Polyps sessile Exceptions: 1. Hydra tumbles on tentacles 2. Sea anemones glide on pedal disc
VIII. Reproduction 1. Asexual budding from polyps or medusae 2. Sexual a. Medusae release sperm & eggs b. Some monoecious, some dioecious c. Larvae free-swimming
IX. Other facts-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
- Cndarian
- Coral y falso coral diferencias
- Turritopsis nutricula life span
- Man o war habitat
- Phylum cnidaria digestive system
- Cnidaria
- Phylum cnidaria general characteristics
- Cnidaria characteristics
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- Differences between hydrozoa and scyphozoa
- General characteristics of cnidaria
- Chapter 24 animal evolution diversity and behavior
- Coral reef food chain
- Yellow sea and east china sea
- Led soldiers across hellespont into anatolia
- What does the sea symbolize in the old man and the sea
- Sea stack diagram
- Sea sponge symmetry
- Hydra ram forcible entry tool
- Hydra iptv
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- Hydra tutorial
- Hydra
- Ncrack vs hydra
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- Hydrozoa symmetry
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- Hydra kernal
- Characteristics jellyfish
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- Aplysina
- Type of phylum
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- Box jellyfish
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- What do jellyfish eat
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- Class scyphozoa
- Gfp gene
- Jellyfish
- Box jellyfish
- Box jellyfish
- Adaptation of jellyfish
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- Symmetry of cnidarians
- Shin kubota immortal jellyfish
- Grassland animal adaptations
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- Jellyfish networking data centers randomly