45N Invertebrates

Phylum: Porifera Common Name: Pore-bearing Examples Sponges Symmetry Asymmetrical Multicellular Organization Cells Habitat In the water

Phylum: Porifera Common Name: Pore-bearing Movement Adult sponges are sessile = do not move Reproduction Sexual Asexual by budding and regeneration How it eats “Filter-feeding” Cells with flagella bring water through and filter out the food Other Simplest animals

Pictures of Porifera: Sponges

Pictures of Porifera: Barrel Sponge Tube Sponge

Phylum: Cnidaria Common Name: Stinging Cells Examples Jellyfish, hydra, sea anemones, corals Symmetry Radial Multicellular Organization Cells, tissues Habitat In the water

Phylum: Cnidaria Common Name: Stinging Cells Movement Free floating and attached to rocks Reproduction Sexual Asexual by budding How it eats Captures food with tentacles covered with stinging cells Other

Pictures of Cnidaria: Sea Anemone Coral Hydra Jellyfish Coral

Pictures of Cnidaria: Hydra Jellyfish Sea anemone Coral

Phylum: Platyhelminthes Common Name: Flatworms Examples Planaria, tapeworm, fluke (causes schistosomiasis) Symmetry Bilateral Multicellular Organization Cells, tissues, organs, organ systems Excretory, nervous, reproductive, muscular, digestive systems (some) Habitat In the water (planaria) Parasites in hosts (tapeworms and flukes)

Phylum: Platyhelminthes Common Name: Flatworms Movement Cilia (planaria) Hooks and suckers on parasites Reproduction Sexual (hermaphrodite = both female and male parts) Asexual by regeneration How it eats Mouth (planaria has one opening) Suckers (parasites) Other

Pictures of Platyhelminthes: Tapeworm Planaria Liver Fluke

Pictures of Platyhelminthes: Tapeworm Planaria Liver Fluke

Phylum: Nematoda Common Name: Roundworms Examples Pinworms, filarial worm (causes elephantiasis) Symmetry Bilateral Multicellular Organization Cells, tissues, organs, organ systems Excretory, nervous, reproductive, muscular, digestive systems Habitat In the soil, water, and parasites in hosts

Phylum: Nematoda Common Name: Roundworms Movement Muscles move like a whip Reproduction Sexual (separate sexes) How it eats Mouth to anus (has two openings) Other

Pictures of Nematoda: Hookworm Trichinia Worm Filarial Worm

Pictures of Nematoda: Trichina Worm Results of Elephantiasis Pinworm

Phylum: Annelida Common Name: Segmented Worms Examples Earthworm, leech Symmetry Bilateral Multicellular Organization Cells, tissues, organs, organ systems Excretory, nervous, reproductive, muscular, digestive, respiratory, circulatory systems Habitat Water, land

Phylum: Annelida Common Name: Segmented Worms Movement Muscles, setae = bristle-like hair Reproduction Sexual (hermaphrodite) How it eats Mouth to anus (has two openings) Other Closed circulatory system = enclosed within vessels Has a coelom = fluid-filled body cavity

Pictures of Annelida: Leech Earthworm

Pictures of Annelida: Earthworm Leech

Phylum: Mollusca Common Name: Soft Bodies Examples Squid, oyster, snail, octopus, clam Symmetry Bilateral Multicellular Organization Cells, tissues, organs, organ systems Excretory, nervous, reproductive, muscular, digestive, respiratory, circulatory systems Habitat Water, land

Phylum: Mollusca Common Name: Soft Bodies Movement Muscular foot = to creep over rocks Reproduction Sexual (hermaphrodite and separate sexes) How it eats Radula = organ with teeth to scrape food Filter-feeding by oysters and clams Other Open circulatory system = not entirely enclosed within vessels Has a mantle = fold of skin that surrounds the organs Has a coelom

Pictures of Mollusca: Snail Squid Scallop Slug Octopus

Pictures of Mollusca: Squid Slug Snail Octopus Scallop

Phylum: Echinodermata Common Name: Spiny Skin Examples Starfish, sand dollar, sea urchin Symmetry Radial Multicellular Organization Cells, tissues, organs, organ systems Excretory, nervous, reproductive, muscular, digestive, respiratory,and circulatory systems Habitat Water

Phylum: Echinodermata Common Name: Spiny Skin Movement Water vascular system = water filled canals Tube feet = extends sucker and contracts to pull it forward Reproduction Sexual (separate sexes) Asexual by regeneration How it eats Mouth to anus (most); few with only a mouth (ex. Brittle star) Tube feet opens shells of prey Other Skin gills for respiration Has a coelom Open circulatory system Endoskeleton = internal skeleton

Pictures of Echinodermata: Sea Urchin Brittle Star Starfish Sea Cucumber Sand Dollar

Pictures of Echinodermata: Brittle Star Starfish Sea Urchin Sand Dollar Sea Cucumber

Phylum: Arthropoda Common Name: Jointed Legs Examples Insects – grasshopper Crustaceans – lobsters Arachnids – spiders Centipedes and millipedes Symmetry Bilateral Multicellular Organization Cells, tissues, organs, organ systems Excretory, nervous, reproductive, muscular, digestive, respiratory,and circulatory systems Habitat Everywhere

Phylum: Arthropoda Common Name: Jointed Legs Movement Flying, hopping, crawling Reproduction Sexual (separate sexes) How it eats Mouth to anus (has two openings) Other Has a coelom Open circulatory system Exoskeleton (hard outer body) of chitin Most species of all animal phyla

Pictures of Arthropoda: Tick Spider Centipede Lobster Butterfly Grasshopper

Pictures of Arthropoda: Centipede Lobster Butterfly Scorpion Spider