Across
- 2. Biology is the study of _____________
- 3. The smallest living things
- 6. whale The largest animal ever to live
- 8. The study of heredity and the variations of inherited characteristics
- 9. A multicellular living creature that can move and gets energy by eating other organisms
- 10. The center of a cell or atom
- 12. The mechanism by which evolution occurs
- 13. Different kinds of environments or ecosystem
Down
- 1. A multicellular living organism that uses photosynthesis
- 4. The process by which living organisms change and are transformed over time
- 5. The basic building blocks of life
- 7. A Class of animals that is extinct
- 11. Spore-producing organisms that feed on decaying organic matter