CK-12 Foundation
Ck 12: Episd: First Cells
[Free Registration/Login may be required to access all resource tools.] Check out how the theoretical idea of the evolution of the very first cell. Students will examine photosynthesis and cellular respiration.
CK-12 Foundation
Ck 12: Biology: Earth Forms and Life Begins Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on the origin of life.