Intro to Biology

7. The stable internal balance that a cell maintains.
9. The variable in an experiment that is deliberately changed by a scientist. (2 words)
11. A segment of DNA that contains the instructions for one trait.
12. The basic unit of life
13. Using the energy from the sun to convert carbon dioxide and water into high energy sugars.
15. The information gathered from making observations.
19. A group of organs that work together to perform a similar function
21. A series of steps used by a scientist to solve a problem. (2 words
22. The idea or belief that life can arise from non-living matter. (2 words)
23. Data that are numbers and are obtained from counting or measuring.
24. The second set of lenses in a compound microscope.
26. A group of unicellular organisms that live in a group but have to relationship to one another.

1. The factors in an experiment that can be changed.
2. The first lens in a compound microscope.
3. The part of the microscope that moves the stage, or the objectives, up and down very rapidly. (3 words)
4. A possible answer to a question. It must be thoroughly tested.
5. A broad and comprehensive statement of what is thought to be true, and is supported by a considerable amount of evidence.
6. The study of life.
8. The part of the microscope that holds the slide.
10. This part of the microscope moves that stage (or objectives) up and down very slowly.
14. That factor in an experiment that a scientist wants to observe. (2 words)
16. Data that are descriptive.
17. A group of tissues that work together to perform a common function.
18. A group of cells that work together to perform a common function.
20. The part of the experiment that serves as a basis for comparison because the experimental factor has been removed.
25. The genetic information that is found in every living cell.