CK-12 Foundation
Ck 12: Biology: Flatworms
[Free Registration/Login may be required to access all resource tools.] Discusses characteristics of flatworms.
CK-12 Foundation
Ck 12: Life Science: Flatworms
[Free Registration/Login may be required to access all resource tools.] The word "worm" is not very scientific. But it is a word that informally describes animals (usually invertebrates) that have long bodies with no arms or legs. Worms...