Invertebrates

Invertebrates

Arthropods
1. They are the largest and most diverse group of animals.
  1. Pairs of jointed legs
    1. Rigid body called exoskeleton
2. Arachnids
  1. Spiders
  2. Scorpions
3. Insects
  1. Bee
  2. Butterfly
4. Crustaceans
  1. Crabs
  2. Crayfish
5. Centipedes and millipedes
  1. Centipede
  2. Scolopendras
Mollusk
1. They are soft-bodied invertebrates that usually have a shell
  1. They have a mantle and a large muscular foot
2. Bivalves
  1. mussel
  2. clam
3. Gastropods
  1. snails
  2. slugs
4. Cephalopods
  1. octopus
  2. squid
Echinoderms
1. Some of them are filter feeders
2. They don’t have heads or brains
3. Some of them are predators
4. Some of them are filter feeders
5. sea star
6. urchins
Cnidarians
1. They’re hollow-bodied, soft bodies
  1. They are not good swimmers but they move using the currents
2. jellyfish
3. corals
Worms
1. Their bodies are made up of segments or rings
  1. They are flexible
    1. Annelids
      1. earthworm
      2. leech
    2. Nematodes
      1. Eye worm
      2. trichina
    3. Platyhelminthes
      1. Fasciola
      2. Schistosoma
Porifera
1. Most of them live in the ocean but some of them live in freshwater
  1. Gain nutrients form water that passes through
    1. Siliceous sponges
    2. Purple sponge

Zusammenfassung der Ressource

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