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Across 3. Filament of fungal cells. 4. Chemical that provides both toughness and flexibility. 5. Rupturing of a cell due to excell internal pressure 6. Result of sexual reproduction when each parent contributes 1/2 the DNA necessary for the offspring. 12. Science of classifying organisms 13. Jellylike fluid inside the cell in which the organelles are suspended 15. Process by which a diploid (2n) cell forms gametes (n). 16. Organelles in which nutrients are converted to energy. 20. Process by which plants use the energy of sunlight to and simple chemicals to produce their own food 21. Relationship between two organisms of different species where one benefits and one is harmed. 22. Organisms that eat both plants and other organisms. 27. Time interval between cellular reproduction. 29. A hypothesis that has been tested with a significant amount of data. 31. Protozoan that propels itself with a flagellum. 32. Organism that feeds on a living host. 34. Process of asexual reproduction in eukaryotic cells.

Down 1. Process by which a cell engulfs foreign substances or other cells. 2. Fine, threadlike protens found in the cells of the cytoskeleton. 4. Temporary union of two organisms for the purpose of DNA transfer. 7. Mrs. Staley's special biology term for a roundish blob seen under the microscope. 8. Anaerobic breakdown of sugars into smaller molecules. 9. Collapse of a walled cells cytoplasm due to lack of water. 10. Educated guess that attempts to explain an observation or answer a question. 11. Specialized proteins that aid in destroying infectious agents. 14. Thin covering of tissue. 17. The study of cells. 18. DNA coiled around and supported by proteins, found in the nucleus of the cell. 19. Temporary, foot-like extension of a cell used for locomotion or engulfing food. 23. Close relationship between two or more species where at least one benefits. 24. Deoxyribonucleic acid. 25. Organism that causes disease. 26. Sequence of three nucleotide bases on mRNA that refers to a specific amino acid. 28. Firm, flexible coating outside the plasma membrane. 30. Science that studies how characteristics get passed from parent to offspring. 33. Ribonucleic Acid.