Across
- 4. A community of interacting organisms and their environment
- 6. How plants produce energy
- 7. Form of asexual reproduction
- 9. A cell without a membrane bound nucleus
- 10. Study of classification
- 11. Development of a distinct "head" in organisms
- 13. An infectious agent that is not considered living or non-living
- 14. An organism with a single cell
Down
- 1. Organisms that do not require oxygen to live
- 2. Substance that creates immunity to a disease or pathogen
- 3. Error in DNA replication that results in a change in DNA sequence
- 5. Process by which organisms change over time
- 8. Most specific division of taxonomic rank
- 11. Phylogenetic tree
- 12. Self contained part of an organism with a specific function