Curated OER
Invertebrate Chordates
For this invertebrate worksheet, students fill in the blank of four statements that focus on the characteristics of invertebrate chordates. Then students will number five statements in the order water flows through a tunicate. Then...
University of California
Ucmp: Introduction to the Cephalochordates & Lancelets
This site describes the lancelets and the characteristics of chordates they express.
California Academy of Sciences
California Academy of Sciences: Echinoderm Webpage
Resource provides a brief overview of echinoderms. Includes pictures and links for more information.
CK-12 Foundation
Ck 12: Biology: Invertebrate Chordates
[Free Registration/Login may be required to access all resource tools.] Discusses the characteristics of the two major subphyla of chordates without a backbone.