Curated OER
Fishes and Amphibians
In this fish and amphibian worksheet, students will compare a diagram of an invertebrate chordate with a diagram of a fish and complete 2 short answer questions. Then students will name four characteristics that allow amphibians to live...
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.