McGraw Hill
Glencoe Biology: Invertebrate Chordates: Self Check Quiz
This multiple-choice quiz on invertebrate chordates allows students to get hints for each question and check their answers after submitting.
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.
CK-12 Foundation
Ck 12: Life Science: Chordates
[Free Registration/Login may be required to access all resource tools.] Did you know that fish, amphibians, reptiles, birds, and mammals are all related? They are all chordates. Chordates are a group of animals that includes vertebrates,...
Other
University of Wisconsin La Crosse: Zoo Lab: A Resource for Animal Biology
A fantastic source of basic zoological information, a great supplement for all animal biology classrooms.
CK-12 Foundation
Ck 12: Biology: Chordates
[Free Registration/Login may be required to access all resource tools.] Overview of the characteristics and classification of chordates.
CK-12 Foundation
Ck 12: Biology: Vertebrate Classification
[Free Registration/Login may be required to access all resource tools.] Covers the nine classes of vertebrates and their distinguishing traits.
BiologyWise
Biology Wise: Digestive System of an Earthworm
Provides information about the anatomy of the earthworm's digestive system and why the earthworm plays such an important role in soil health.
Other
Coelacanth: The Fish Out of Water
A captivating site that explores all facets of this "fossil fish". Recent history, conservation, and biological behavior are only a few of the areas explored.