Houghton Mifflin Harcourt
Harcourt: School Publishers: Exploring Ecosystems
Compare and contrast three very different ecosystems - the Sonoran Desert in Arizona, the Florida Everglades, and the Arctic Coastal Plain in Alaska. Learn what makes each of them unique, and about the adaptations plants and animals had...
Curated OER
Tree Frog
This site provides a basic lesson plan from Reach Out! Michigan comparing plants to animals.