1. 45N
Invertebrates

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

3. 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

4. Pictures of Porifera:
Sponges

5. Pictures of Porifera:
Barrel Sponge
Tube Sponge

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

7. 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

8. Pictures of Cnidaria:
Sea Anemone
Coral
Hydra
Jellyfish
Coral

9. Pictures of Cnidaria:
Hydra
Jellyfish
Sea anemone
Coral

10. 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)

11. 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

12. Pictures of Platyhelminthes:
Tapeworm
Planaria
Liver Fluke

13. Pictures of Platyhelminthes:
Tapeworm
Planaria
Liver Fluke

14. 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

15. 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

16. Pictures of Nematoda:
Hookworm
Trichinia Worm
Filarial Worm

17. Pictures of Nematoda:
Trichina Worm
Results of Elephantiasis
Pinworm

18. 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

19. 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

20. Pictures of Annelida:
Leech
Earthworm

21. Pictures of Annelida:
Earthworm
Leech

22. 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

23. 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

24. Pictures of Mollusca:
Snail
Squid
Scallop
Slug
Octopus

25. Pictures of Mollusca:
Squid
Slug
Snail
Octopus
Scallop

26. 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

27. 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

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

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

30. 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

31. 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

32. Pictures of Arthropoda:
Tick
Spider
Centipede
Lobster
Butterfly
Grasshopper

33. Pictures of Arthropoda:
Centipede
Lobster
Butterfly
Scorpion
Spider