Across
- 2. reproduction Process by which two parents produce genetically different offspring.
- 4. Organisms that depend on other organisms for their food
- 6. The sum total of all processes in an organism that convert energy and matter from outside sources and use that energy and matter to sustain the organism's life functions
- 9. The collected body of data from experiments and observations.
- 11. variable The variable manipulated by the experimenter
- 13. The sum total of all processes in an organism that use energy and simple chemical building blocks to produce large chemicals and structures necessary for life.
- 14. A factor that changes in an experiment
- 16. theory An explanation of some part of the natural world that has been thoroughly tested and is supported by a significant amount of evidence from observations and experiments
- 19. The process by which physical and biological characteristics are transmitted from the parent (parents) to the offspring.
- 21. Living creatures that are too small to see with the naked eye
- 22. electron microscope A microscope that transmits a beam of electrons through a thinly sliced specimen
- 25. Special structures that allow living organisms to sense the conditions of their internal or external environment.
- 26. The smallest units of an organism considered alive
- 27. variable The variable responding to the manipulated variable
- 28. Idea that long ago, very simple life forms spontaneously appeared through chemical reactions
- 34. light microscope A microscope that shines light through a specimen using two lenses to magnify an image
- 35. Logical interpretation based on prior knowledge, experience, or evidence
- 36. A suggested, testable answer to a well-defined scientific question or a possible, testable explanation for observations
- 37. The maintenance of stable internal conditions.
- 38. Organisms that only eat plants.
Down
- 1. An abrupt and marked change in the DNA of an organism compared to that of its parents
- 3. group The group in an experiment that is manipulated
- 5. electron microscope A microscope that passes a beam of electrons over the surface of a specimen
- 7. observations Observations involving numbers, such as counting or measuring.
- 8. reproduction Process by which a single organism produces genetically identical offspring
- 10. observations Observations that are not easily counted or measured, such as color or texture
- 12. The sum total of all processes in an organism that break down chemicals to produce energy and simple chemical building blocks
- 15. The process by which green plants and some other organisms use the energy of sunlight and simple chemicals to produce their own food.
- 17. control The group in an experiment that experiences no manipulation (does not contain the independent variable)
- 18. system of units The metric system (SI), which is the most widely used system of measurement in science
- 20. law A description of a natural relationship or principle, often expressed in mathematical terms, and supported by a significant amount of evidence
- 23. The Latin prefix uni means "one", so unicellular means "single-celled"
- 24. Organism that is internally warmed by heat-generating metabolic process.
- 29. The study of life. the Greek word bios means "life", and -logy means "study of".
- 30. Organisms that eat both plants and other organisms.
- 31. Organisms that are able to make their own food
- 32. Organisms that eat only organisms other than plants.
- 33. Organism that lacks an internal mechanism for regulating body heat