Curated OER
Understanding Evolution: Homology and Analogy
In this understanding evolution learning exercise, 9th graders define homology and analogy. Students compare and contrast similar structures in several given species.
Tree of Life Project
Tree of Life Web Project: Terrestrial Vertebrates
Some vertebrates have fins and some have limbs with digits to move across land. Discover these creatures with limbs and digits from who they are to who they were and how they evolved.