Biology Vocabulary

3. a differentiated structure within a cell, such as a mitochondrion, vacuole, or chloroplast, that performs a specific function
4. group, in an experiment, a group that a scientist can compare to another group that is identical except for
11. the scientific study of living things
14. a group of cells that are similar in structure and that work together to perform a certain function
15. a state of balance reached through reactions within a cell or organism
16. a large area dominated by characteristic plants and animals, such as a rain forest, desert, or
18. from those of other populations
19. data, data that represent qualities or characteristics that can't be expressed by a
20. the total of all chemical reactions within an organism
25. variable, in an experiment, the variable that depends on the other variables
26. system, a body system, consisting of glands, that produces hormones that act throughout the body

1. relating to factors that are associated with or result from the activities of living organisms
2. all of the populations that live and interact with each other in a particular area
5. any living thing that takes in food, grows, and reproduces
6. data, data that represent a quantity; numeric data
7. performs a specific function
8. all of the members of one species that live in a common area and whose population dynamics are
9. a set of organized steps that scientists follow under controlled conditions to test a theory or
10. a group of different tissues that work together to perform a specific function
12. a community or group of organisms living and interacting with each other and their
13. an assumption that is made as a result of gathering data through sampling
17. in an experiment, a factor that is unknown or can change
21. relating to nonbiological factors
22. a differentiated structure within a cell, such as a mitochondrion, vacuole, or chloroplast,
23. variable, in an experiment, the factor that a scientist deliberately manipulates
24. property or factor