Biology Crossword

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Across
  1. 1. Organelle known as the “powerhouse of the cell.”
  2. 5. The structure in plant cells that provides support and protection.
  3. 6. The organelle that contains chlorophyll.
  4. 7. The fluid portion of blood.
  5. 12. Scientist who proposed natural selection.
  6. 13. The phase of the cell cycle when DNA is copied.
  7. 15. The largest organ in the human body.
  8. 16. A change in DNA sequence.
  9. 17. Process in which organisms gradually change over time.
  10. 18. Blood vessels that carry blood away from the heart.
  11. 24. Type of organism that makes its own food.
  12. 26. Type of immunity gained after vaccination.
  13. 27. Organ system responsible for transporting materials in the body.
  14. 28. Gas released during photosynthesis.
  15. 30. The stage of mitosis when chromosomes line up in the middle.
  16. 31. The sugar found in DNA.
  17. 33. Kingdom made up of mushrooms and molds.
  18. 34. The basic unit of life.
  19. 35. The opening on a leaf used for gas exchange.
  20. 37. The bond that holds together complementary DNA bases.
  21. 38. Relationship in which both organisms benefit.
  22. 40. The process of cell division that produces identical cells.
Down
  1. 2. Structure that controls what enters and leaves the cell.
  2. 3. The part of the neuron that carries impulses away from the cell body.
  3. 4. Tiny structures in cells that make proteins.
  4. 8. The process by which traits become more common in a population over generations.
  5. 9. The hormone that regulates blood sugar levels.
  6. 10. Process plants use to convert sunlight into chemical energy.
  7. 11. Movement of water across a selectively permeable membrane.
  8. 14. The type of RNA involved in carrying amino acids during protein synthesis.
  9. 19. Organism that breaks down dead material.
  10. 20. The smallest classification group in taxonomy.
  11. 21. A trait controlled by more than one gene is called this type of inheritance.
  12. 22. The type of symbiosis in which one organism benefits and the other is harmed.
  13. 23. Molecule that carries genetic information.
  14. 25. The reactant needed for cellular respiration besides glucose.
  15. 29. The study of heredity.
  16. 32. A food chain begins with this type of organism.
  17. 36. Process by which organisms maintain stable internal conditions.
  18. 39. Type of reproduction involving one parent.