Page content written and completed 1 May 2000 by:
Aisha Baqai
Vivek Guruswamy
Janie Liu
Gizem Rizki
as part of a Biology 1B project for Section 120,
under Brian R. Speer (GSI),
who added some additional content and created the web version.
Minor changes concerning the phylogenetic position of rotifers and
acanthocephalans by AGC on June 8, 2000.