ANIMALS [Unit 4 - Y4]

ANIMALS [Unit 4 - Y4]

1. Vertebrates

   • NUTRITION
     • herbivores
       • fish-birds-mammals
     • omnivores
       • fish-birds-mammals
     • carnivores
       • reptiles-amphibians-mammals- birds-fish
   • RESPIRATION
     • water-gills
       • fish-young amphibians
     • air-lungs
       • reptiles-adult amphibians-mammals-birds
   • REPRODUCTION
     • Oviparous
       • reptiles-amphibians -birds-fish
       • mammals - monotremes
         • MONOTREMES
     • Viviparous
       • mammals
     • Ovoviviparous
       • fish-reptiles-amphibians
       • Produce eggs that develop and hatch inside the mother. Later, the mother gives birth to live offspring

2. Invertebrates

   • Arthropods
     • Crustaceans
       • crab
       • Cephalothorax and abdomen + 5 pair of legs + 4 antennae
     • Myriapods
       • centipede
       • segmented bodies - many pairs of legs + 2 antennae
     • Arachnids
       • scorpion
       • cephalothorax and abdomen + 4 pair of legs + up to 8 eyes
     • Insects
       • butterfly
       • head, thorax and abdomen - 3 pairs of legs - 2 antennae - most have 1 or 2 pairs of wings
     • Have an external skeleton - exoskeleton
   • Molluscs
     • Gastropods
       • snail
     • Bivalves
       • mussels
     • Cephalopods
       • octopus
   • Echinoderms
     • starfish
     • hard, spiny skin
   • Sponges
     • agelas conifera
   • Annelids
     • clitellata
     • long, soft body with moist skin - parasites
   • Cnidarians
     • jellyfish
     • sea anemones
     • jelly-like body - venomous tentacles