INVERTEBRATES

ARTHROPODS
1. Is the largest invertebrate group.
  1. Myriapods: Long,thin and segmented bodies,have many pairs of legs andn two antennae,live in dark,damp places.
  2. Insects: Three body parts:a thorax,a head and an abdomen,two antennae and three pairs of legs,most have two pairs of wings.
  3. Arachnids: Have two body parts:a caphalothorax and a abdomen,The cephalothorax is made up of the head and the thorax.They have four pairs of legs and up to eight eyes.
  4. Crustaceasns: Have two body parts:a cephalothorax and a abdomen.Their skeleton is very hard,like a shell.They have five pairs of legs,they also havefour antennae.
MOLLUSCS
1. Cephalopod
2. Bivalves
3. Gastropods
ECHINODERMS
1. Live at the botton of the sea,are, covered hard,spiny skin.Starfish are echinoderms.
SPONGES
1. Live in water,are the simplest invertebrates, dont have muscles nervous system or circulatory system
ANNELIDS
1. Have a long and soft body with moist skin. Live inside the bodies of other animals most live in water but they can also live in land
CNIDARIANS
1. Live in the sea,soft,jelly- like body.Jellyfish and sea anemones are cnidarians.

Resumen del Recurso

	Creado por Miguel Bastida hace alrededor de 8 años