Across
- 2. plant tissue that conducts water and dissolved nutrients
- 5. any of the forms of a gene that can occupy the same locus
- 7. any of green pigments found in photosynthetic organisms
- 10. made up of one or two long chains of amino acids
- 11. the study of heredity and variation in organisms
- 12. relating to or resulting from living things
- 16. cell division that produces reproductive cells
- 17. the act of making copies
- 18. the relation between two interdependent species of organisms
- 20. an infectious agent that replicates itself within living hosts
Down
- 1. semi-permeable barrier found in all cells
- 3. branch of science that deals with living organisms
- 4. an individual animal, plant, or single-celled life form / an individual life form /Mr. Taylor
- 6. taxonomic group whose members can interbreed
- 8. metabolic equilibrium maintained by biological mechanisms
- 9. the process by which a cell divides into two new cells
- 13. a threadlike strand of DNA that carries genes
- 14. the act of dispersing something
- 15. a fertalized egg
- 19. the change or alteration of DNA