Across
- 2. group of organisms that can breed and produce offspring
- 3. System for maintaining the barrier between the inside of an organism and the external environment
- 6. Provides electrical communications
- 8. A factor that can change in an experiment
- 10. System that regulates hormones
- 12. multiple populations living in the same region
- 16. System that protects the body from microbes
- 18. a group of the same type of organisms living together in the same place
- 24. Plant and animal communities located in the same geographic area with the same climate
- 25. Information gained from observations
- 28. A factor that does not change
- 30. Made by combining what you know and what you have learned
- 31. the regulation of an organism's internal environment
- 33. Arranged in an orderly way
- 34. Mass increases, increases the amount of the number of cells
- 35. Direct method of gathering information in an orderly way
- 36. Causes a reaction by the organism
Down
- 1. group of cells that work together to do a specific function
- 4. Investigates a phenomenon in a controlled way
- 5. The reaction to the stimulus
- 7. tissues that work together to perform a specific function
- 9. all of the ecosystems on a planet
- 11. Production of offspring
- 13. System responsible for producing offspring
- 14. Testable explanation of a situation
- 15. basic building block of life
- 17. Provides movement
- 19. Process of natural changes throughout life
- 20. System that involves blood flow
- 21. Bones
- 22. the job that the structure does for the organism
- 23. System required for gas exchange
- 26. the inherited characteristics that results from changes to a species over time
- 27. System responsible for liquid excretion
- 29. System responsible for absorption of nutrients
- 32. Anything that has all the characteristics of life
- 33. a group of similar organ systems that work together to perform a specific function