Vocab Review 2023

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Across
  1. 1. the ability of the cell membrane to control the flow of substances in and out of the cell.
  2. 3. the study of living things
  3. 5. the movement of molecules or ions across a cell membrane that does NOT require energy from the cell
  4. 6. a disease caused when cells divide uncontrollably and spread into surrounding tissues.
  5. 8. the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules
  6. 11. the natural home or environment of a plant, animal, or other organism
  7. 12. a group of organs that work together to perform one or more functions.
  8. 13. variable that the researcher manipulates
  9. 15. organisms whose cells do NOT have a membrane-bound nucleus.
  10. 17. the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed.
  11. 19. an interacting group of various species in a common location.
  12. 20. a substance, organism or agent capable of causing cancer.
  13. 22. proteins that DNA coil and wrap around when chromosomes condense
  14. 24. educated guess made by scientists used to test in an experiment
  15. 25. cells from which all other cells with specialized functions are generated.
  16. 26. the movement of molecules or ions across a cell membrane that requires energy from the cell
  17. 27. a group of organisms that can reproduce with one another in nature and produce fertile offspring.
Down
  1. 2. all the organisms and the physical environment with which they interact.
  2. 4. constant internal conditions
  3. 7. dynamic evolutionary process of natural selection that fits organisms to their environment, enhancing their evolutionary fitness.
  4. 9. a collection of tissues that structurally form a functional unit specialized to perform a particular function.
  5. 10. variety of life in the world or a particular habitat or ecosystem.
  6. 14. variable that the researcher measures to see if it changes due to the independent variable
  7. 16. organisms whose cells have a membrane-bound nucleus.
  8. 18. worldwide sum of all ecosystems
  9. 21. change in the heritable characteristics of biological populations over successive generations.
  10. 23. a group of cells that have similar structure and that function together as a unit.