Life Science Final Review

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Across
  1. 2. Nutrients move into the bloodstream from the digestive system by a process
  2. 7. refers to similar structures that related species have inherited from a common ancestor
  3. 8. Differences between members of the same species
  4. 9. produces egg and sperm cells during the life cycle of a plant
  5. 13. A trait that helps an organism survive and reproduce
  6. 17. The outermost layer of the skin
  7. 18. individuals that are better adapted to their environment are more likely to survive and reproduce
  8. 20. describes the pattern in which rapid changes occur in a species for short periods, followed by a long period of little or no change
  9. 21. structure directs the activities of a cell
  10. 22. Food moves down from leaves
  11. 24. plant-like protists
  12. 28. this virus is named for the organism that it infects
  13. 29. An animal whose body temperature does not change much, even when the temperature of the environment changes
  14. 30. gradual change in a species over time
  15. 31. this process results in genetically different bacteria
Down
  1. 1. part of a woody stem that produces new vascular tissue
  2. 3. a substance that you get from food and that your body needs to carry out processes, such as contracting muscles
  3. 4. A balanced display of body parts
  4. 5. reduces evaporation in a plant
  5. 6. Gases pass in and out of a leaf
  6. 8. plant cell structure where water stored
  7. 10. a species creating more offspring than can possibly survive
  8. 11. The body part where two bones come together
  9. 12. body tissue that can contract, or shorten
  10. 14. spaces in bones are filled with a soft connective tissue called
  11. 15. Binary fission is the bacterial process of______________ reproduction
  12. 16. Messages are carried back and forth between the brain and other parts of the body
  13. 19. Each _________ in the body is part of a(n) organ system performing a major function
  14. 23. Fungi absorb food through _________ that grow into a food source
  15. 25. part of a woody stem that forms rings that indicate the tree’s age
  16. 26. where the genetic material of a virus is found.
  17. 27. what much of a newborn baby’s skeleton is made of