Describes how to investigate the physical characteristics and behavior of sponges, worms, and mollusks.
Bibliography
Includes bibliographical references (pages 42-44) and index.
Contents
Living filters -- Diffusing waste -- Soak it up -- Lean on me -- Looking at leeches -- Light sight -- Many hearts -- Totally tubular -- Fibonacci shells -- Colorful cuttlefish -- Slime time -- Brain games.