Biology Crossword

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Across
  1. 3. Organelle often called the “powerhouse” of the cell
  2. 6. Protein that speeds up reactions without being consumed
  3. 8. Largest population size an environment can sustain
  4. 11. Variety of life within an area
  5. 13. Tiny structure responsible for assembling proteins
  6. 15. Molecule that stores hereditary information
  7. 17. Structure in plant cells where light energy is captured
  8. 18. Survival and reproduction of organisms with helpful traits
  9. 19. Change in populations over many generations
  10. 21. Organism hunted and eaten by another
  11. 22. Trait expressed even when only one allele is present
  12. 25. Genetic makeup represented by letter combinations
  13. 27. Inherited characteristic that improves survival
  14. 28. Different version of the same gene
  15. 29. Close relationship between two different species
  16. 31. Maintaining stable internal conditions despite outside changes
  17. 33. Process where DNA makes an identical copy of itself
  18. 34. Particles naturally spreading from crowded areas to less crowded areas
  19. 35. Process plants use to turn sunlight into stored chemical energy
  20. 36. Segment of DNA that codes for a trait or protein
  21. 37. Main energy-carrying molecule used by cells
  22. 38. Community of organisms interacting with their environment
  23. 39. Cell division producing two identical body cells
Down
  1. 1. Substance that lowers activation energy in a reaction
  2. 2. Step where genetic information is copied from DNA into RNA
  3. 4. Organism that hunts another organism for food
  4. 5. Diagram used to predict offspring genetics
  5. 7. Reproductive cell such as sperm or egg
  6. 9. Special cell division that forms gametes with half the chromosomes
  7. 10. Water moving across a membrane toward a higher solute concentration
  8. 12. What happens when a protein loses its shape from heat or pH
  9. 14. Observable traits produced by genes and environment
  10. 16. How cells release energy from glucose for ATP production
  11. 20. Division of the cell’s cytoplasm after nuclear division
  12. 23. Permanent change in a DNA sequence
  13. 24. Stage of protein synthesis occurring at ribosomes
  14. 26. Trait hidden unless two copies are inherited
  15. 30. Fusion of two gametes to form a zygote
  16. 32. Condensed structure carrying many genes
  17. 33. Nucleic acid that helps carry genetic instructions for proteins