Across
- 3. Protective outer layer of a cell
- 4. Muscle separating chest and abdomen
- 6. Process plants use to make food
- 11. Organism that cannot make its own food
- 12. Relationship where both organisms benefit
- 14. Green pigment in plants
- 15. Branch of biology dealing with plants
- 17. Liquid part of blood
- 20. Scientist who discovered cells
- 22. Kingdom that includes mushrooms
- 23. Structure carrying genetic information
- 25. Group of similar organisms that can reproduce
- 27. Branch of biology dealing with animals
- 29. Tube carrying food to the stomach
- 31. Largest organ in the human body
- 33. Warm-blooded vertebrate with feathers
- 35. Animal without a backbone
- 37. Process where one cell divides into two identical cells
- 39. Dioxide Gas released during photosynthesis
- 40. Organ filtering waste from blood
Down
- 1. Change in species over time
- 2. Process where organisms adapt over generations
- 5. Type of reproduction involving one parent
- 7. Scientist who proposed evolution by natural selection
- 8. Study of living organisms
- 9. Organ that pumps blood
- 10. Organelle that controls the cell
- 13. Genetic material found in cells
- 16. Tiny blood cells helping clotting
- 18. Organ where digestion begins
- 19. Organism that makes its own food
- 21. Movement of water across a membrane
- 24. Hard tissue protecting bones
- 26. Scientist who studied inheritance in peas
- 28. Gas needed for respiration
- 30. Study of heredity
- 32. Passing of traits from parents to offspring
- 34. Basic unit of life
- 36. Tiny structure that produces energy in cells
- 38. Blood vessels carrying blood away from the heart