Invertebrates
Sponges segmented worms echinoderms roundworms
Echinoderms
It gets it's name from the Greek spiny skin
Witch contains 6000 species
Oxygen from sea water
Sponges
Sponges are multicellular animals
The scientific name is Porifera
They have a hair like whip
Roundworms
Digestive system with two openings
Reproduce sexually
Take in food and eliminate waste
Segmented worms
Made up of connected segments
Breath through skin
Reproduce sexually