Across
- 5. the production of offspring that are genetically identical to a single parent
- 8. the smallest structural and functional unit of an organism
- 9. the production of new organisms by combining genetic information from two individuals of different sexes
- 10. dependent variable
- 13. a group of ideas intended to explain something
- 14. the chemical processes a living organism undergoes in order to maintain life
- 15. uses a beam of electrons to create an image of small objects
- 18. to observe something or someone carefully or in order to gain information
Down
- 1. a group of cells grown in a nutrient solution from a single original cell
- 2. an instrument used for viewing very small objects
- 3. a possible explanation for something we observe
- 4. something that the experimenter purposely changes; independent variable
- 6. statistics collected together for reference or analysis
- 7. a process in which organisms keep a relatively stable internal environment
- 9. a signal to which an organism responds to
- 11. a conclusion reached on the basis of evidence and reasoning collected
- 12. the study of life and living organisms
- 16. measuring system based on the meter, liter, and gram as units of length, volume, and weight or mass
- 17. method of using evidence to learn about the natural world