Biology

1. Variable the variable affected by the change
3. a group of atoms bonded together
5. the smallest unit of a chemical element
7. Group a group separated from the rest of an experiment
9. a group of cells that function as a unit
11. consisting of a single cell
12. a thing or event that provokes a specific reaction of an organ or tissue
14. System a group of organs that work together
15. a proposed explanation for something
17. something unchanging
18. a behavior caused by the stimulus
19. the smallest unit of an organism

2. being exact
3. consisting of multiple cells
4. Variable a variable that's held constant
5. the condition of being true or correct
6. the state of steady condition
8. Feedback decrease or lessen body processes to return to more stable conditions
10. Variable the variable that is manipulated/changed
13. Feedback increases body processes to return to more stable conditions
16. a collection of tissues that form a unit that has a specific function