CS1: Quarter 3 Vocabulary

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Across
  1. 3. heterotrophs that feed by absorbing food through their cell walls
  2. 5. an organism that is able to capture energy from sunlight or chemicals and use it to produce its own food
  3. 8. rod-shaped organelles that convert energy in food molecules to energy the cell can use to carry out its functions
  4. 9. agent:
  5. 10. the condition in which an organism’s internal environment is kept stable in spite of changes in the external environment
  6. 12. single-celled organisms that lack a nucleus; prokaryotes
  7. 15. consisting of many cells
  8. 16. cell (___): the series of events in which a cell grows, prepares for division, and divides to form two daughter cells
  9. 18. a sac-like organelle that stores water, food, and other materials
  10. 20. an organism that benefits by living with, on, or in a host in a parasitism interaction
  11. 24. a tiny, nonliving particle that enters and then reproduces inside a living cell
  12. 26. ___ generation: the mistaken idea that living things arise from nonliving sources
  13. 28. the process of grouping things based on their similarities
  14. 30. an organism that cannot make its own food, but gets food by consuming other living things
Down
  1. 1. the process by which molecules move from an area of higher concentration to an area of lower concentration
  2. 2. an action or change in behavior that occurs as a result of a stimulus
  3. 4. the most basic level of organization in the classification of organisms
  4. 6. made of a single cell
  5. 7. ___ nomenclature: the classification system in which each organism is given a unique, two-part scientific name indicating its genus and species
  6. 11. a body structure that is composed of different kinds of tissues that work together
  7. 13. the thick fluid region of a cell located inside the cell membrane (in prokaryotes) or between the cell membrane and nucleus (in eukaryotes)
  8. 14. in cells, a large oval organelle that contains the cell’s genetic material in the form of DNA and controls man of the cell’s activities
  9. 16. an organelle in the cells of plant and some other organisms that captures energy from sunlight and changes it to an energy form that cells can use in making food
  10. 17. cell (___): a thin,, flexible barrier that surrounds a cell and controls which substances pass into and out of a cell
  11. 19. a group of similar cells that perform a specific function
  12. 21. a living thing
  13. 22. cell (___): a rigid supporting layer that surrounds the cells of plants and some other organisms
  14. 23. the basic unit of structure and function in living things
  15. 25. any change or signal in the environment that can make an organism react in some way
  16. 27. organ (___): a group of organs that work together to perform a major function
  17. 29. cell (___): a widely accepted explanation of the relationship between cells and living things. All living things are made of cells; Cells are the basic units of structure and function in living things; and All new cells are produced from existing cells
  18. 31. a tiny cell structure that carries out a specific function within the cell