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
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