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Incoming Resources
- Animal life cycles, Joseph Midthun, Samuel Hiti
- Traits and heredity, written by Joseph Midthun ; art by Samuel Hiti
- The cell cycle, text by Joseph Midthun ; art by Samuel Hiti
- Animal structure and classification, Joseph Midthun, Samuel Hiti
- Animal behavior, Joseph Midthun, Samuel Hiti
- Plant life cycles, Joseph Midthun, Samuel Hiti
- Plant and animal adaptations, Joseph Midthun ; Samuel Hiti
- Plant structure and classification, Joseph Midthun, Samuel Hiti
- Animal life cycles, Joseph Midthun, Samuel Hiti
- Animal structure and classification, Joseph Midthun, Samuel Hiti
- Plant life cycles, Joseph Midthun, Samuel Hiti
- Animal behavior, Joseph Midthun, Samuel Hiti
- Plant structure and classification, Joseph Midthun, Samuel Hiti