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Phylum Mollusca

food source, multibillion $ industry

Phylum Mollusca

bivalves filter water, which removes impurities and cleanses ecosystems

Class Bivalvia

get purple dye from this class

Class Oligochaeta

aerates the soil

Class Oligochaeta

bait industry

Phylum Nematoda

over $5 billion crop damage each year

Phylum Nematoda

infects 1 of 6 people worldwide

Phylum Nematoda

leads to elephantiasis

Phylum Nematoda

recycle bacteria/fungi into animal tissue

Phylum Nematoda

Guinea worms enter people's bodies

Class Merostomata

source of lysate, which clots around bacteria

Class Merostomata

source of food for migratory birds

Class Echinoidea

can wipe out the coral reefs

Class Echinoidea

harvested for gonads ("roe")

Class Holothuridea

oriental delicacy

Phylum Porifera

forms basis for bath sponge industry

Class Anthozoa

coral reefs are a diverse, important ecosystem

Class Hydrozoa

important link in the freshwater food chain

Phylum Platyhelminthes

can cause tropical diseases

Class Hirudinea

used as a medical anti-coagulant

Phylum Annelida

ranching of this phylum is a major industry

Phylum Arthropoda

critically important herbivores, primary converters of plant tissue to animal tissue on planet

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