Crossword Puzzle

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Across
  1. 5. is the organ system that takes in food, digests it, and excretes the remaining waste.
  2. 7. cells that divide, enabling the plant to grow longer and develop specialized tissues.
  3. 9. the phase of the cell cycle during which the cell performs its normal functions and its genetic material is copied in preparation for the cell division.
  4. 10. of two identical strands of DNA that make up a chromosome.
  5. 12. It’s produced naturally by biological processes.
  6. 13. a group of specialized tissues containing proteins that can contract and enable the body to move.
  7. 15. structure in the cell nucleus made up of a portion of the cell’s DNA, condensed into a structure that is visible under a light microscope.
  8. 19. carry blood away from the heart.
  9. 20. the stage in the cell cycle when the cytoplasm divides to form two identical cells
  10. 21. a muscular tube connecting your mouth to your stomach.
  11. 24. food and churn it to continue the process of digestion
  12. 25. one of a pair of special cells in the epidermis that surround and control the opening and closing of each stomate.
  13. 28. cells that divide, enabling the plant to grow wider and develop specialized tissues in the stem.
  14. 30. mesophyll: a region of loosely packed cells containing chloroplasts, in the middle of a leaf; a type of ground tissue.
  15. 31. the layers of gases surrounding Earth.
  16. 32. a region's average weather conditions over a long period.
  17. 35. absorbs carbon dioxide from the atmosphere and stores the carbon in another form.
  18. 36. a specialized tissue that provides support and protection for various parts of the body.
  19. 39. a thin sheet of tightly packed cells that covers body surfaces and lines internal organs and body cavities.
  20. 40. system: the tissues covering the outer surface of the plant
Down
  1. 1. vascular tissue in plants that transports dissolved food materials and hormones throughout the plant.
  2. 2. vascular tissue in plants that transports water and dissolved minerals from the roots to the leaves and stems of the plant.
  3. 3. carry blood toward the heart.
  4. 4. system: the tissues responsible for conducting materials within a plant
  5. 6. It’s produced naturally by the reactions of bacteria in soil and water.
  6. 8. tissue on the surface of a plant that produces bark on stems and roots.
  7. 11. the system in a flowering plant, fern, or conifer that anchors the plant, absorbs water and minerals, and stores food
  8. 14. a thin layer of cells covering all non-woody surfaces of the plant.
  9. 16. is a group of diseases in which cells grow and divide out of control
  10. 17. the organ system that is made up of bones and skeletal muscle;
  11. 18. a process in which the result acts to influence the original process.
  12. 22. specialized tissue that conducts electrical signals from one part of the body to another.
  13. 23. the stage of the cell cycle in which the DNA in the nucleus is divided; the first part of cell division.
  14. 26. physically removing the cancerous tissueis sometimes the preferred way of treating cancer.
  15. 27. the short-term changes in the air for a given place and time
  16. 29. system: all plant tissues other than those that make up the dermal and vascular tissue systems
  17. 32. a layer of wax on the upper and lower surfaces of a leaf that blocks the diffusion of water and gases.
  18. 33. exist in very low concentrations in the atmosphere.
  19. 34. a layer of tall, closely packed cells containing chloroplasts, just below the upper surface of a leaf.
  20. 37. an opening in the surface of a leaf that allows the exchange of gases.
  21. 38. material in the nucleus of a cell that contains all of the cell’s genetic information.