Comparing worms- 3 phyla

Earth worm



Phylum: Annelida

Class: Clitellata

Characteristics: long, round, thick, segments, pink

Human Hook Worm

Phylum: Nematoda

Class: Acanthocephalo

Charactheristics: long, brown, thin, round

Round Worm



Phylum: Nematoda

Class: Echinoidea

Charactheristics: short, white, round, thin

Tape Worm

Phylum: Platyhelminthes

Class: Cestoda

Charactheristics: long, white, flat, segments

Amphioxus

Phylum: Chordata

Class: Branchiostoma

Characteristhics: thin, flat, pink, short