INVERTEBRATES 4º

INVERTEBRATES 4º

1. MOLLUSCS

   • Soft muscular body, often protected by hard shell
   • Some live on land (snails)
     • Most live in sea (mussels, octopuses)

2. CNIDARIA

   • Live in sea
   • long poisonous tentacles
   • jellyfish, coral

3. ECHINODERMS

   • Live in sea
   • Hard skin or spikes
   • Often, brightly coloured
   • Starfish, sea urchin

4. WORMS

   • Live in sea or land
   • Long, soft body, divided into segments
   • Earthworm

5. ARTHROPODS

   • Almost all animals (insects)
   • Live in water, air, land & underground
   • Head, thorax, abdomen, jointed legs & exoskeleton

6. PORIFERA

   • Sponges
   • Very simple bodies no organs or blood
   • Absorb nutrients from water and expell waste products

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