Across
- 1. a proposed explanation to natural phenomenon
- 5. regulation to maintain stability despite environmental influences
- 6. components of an environment which are living
- 9. all regions on the planet which support and include life
- 10. a group of similar cells which perform a function
- 11. positive particle within the nucleus
- 17. an individual life form
- 18. the associated populations of different species within an environment
- 19. a system of interactions between living and nonliving things within an environment
- 20. the smallest unit of life
- 21. membrane-bound structure which performs specific functions within a cell
- 23. type of molecular bond formed from loosing/gaining electrons
- 24. type of temporary, molecular bond formed due to polarity
Down
- 2. area which electrons are found
- 3. smallest unit of an element
- 4. components of an environment which are non-living
- 5. suggested explanation for which an experiment can be designed
- 7. attraction of one kind of molecule to a different kind of molecule; property of water
- 8. variation of an element which have different numbers of neutral particles
- 12. neutral particle within the nucleus
- 13. attraction of molecules to other molecules of the same kind ; property of water
- 14. expressed as a concise statement and always true
- 15. the study of life
- 16. type of molecular bond formed from electron sharing
- 21. multiple, unique tissues performing a specific function
- 22. the process of gradual adaptations to species which may cause species to diversify