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Invertebrate Phyla - Coggle Diagram
Invertebrate Phyla
Platyhelminthes
Bilateral symmetry
One digestive opening
Many parasitic forms
Hydrostatic skeleton
Mollusca
Open circulatory system
Have a true coelom
Most have shells but not all
Muscular foot
Annelida
Get oxygen through their skin
Some are hermaphrodites
Complete digestive track
Closed circulatory system
Arthropoda
Have an exoskeleton
Jointed appendages
Largest phylum
Open circulatory system
Echinodermata
Have no blood
Marine animals
Radial symmetry
Have spiny skin
Cnidara
Two body forms (polyp and medusa)
Have stinging tentacles
Bilateral symmetry
Water Animals
Porifera
Simplest and oldest phyla
Found in the ocean
The sponges
Over 5,000 known species
