Biology Final Reveiw

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Across
  1. 5. Physical or behavioral change that makes a species more likely to be successful in its environment.
  2. 6. Anything that absorbs more carbon from the atmosphere than it releases.
  3. 8. A virus that attacks the immune system.
  4. 10. A specific characteristic of an organism.
  5. 11. levels Each link in a food chain is known as a
  6. 14. The end result of a biological or chemical process.
  7. 17. Cell that has 2 complete sets of chromosomes.
  8. 18. One specific trait that is inherited in the organisms genes.
  9. 21. The role a species plays in a community.
  10. 23. Fat tissues that help keep an organism warm.
  11. 24. Membrane-organelle that manages cellular functions and contains DNA.
  12. 25. Anything that eats or consumes other living organisms.
  13. 27. A substance that is present at the start of a chemical reaction and is altered during the reaction.
  14. 29. The process by which organisms produce gametes.
  15. 30. Makes a reaction start faster.
  16. 33. Destruction of an enzyme by temperature or other factors.
  17. 34. The place in which an organism lives out its life
  18. 35. The plural for nucleus.
  19. 36. A cell that has only one set of chromosomes.
  20. 38. The natural difference in DNA between individuals in the same species.
  21. 39. One cell divides into two new daughter cells.
Down
  1. 1. Ability to maintain a stable internal environment.
  2. 2. A body cell.
  3. 3. Data gathered that supports evolution.
  4. 4. Organism that causes disease in a host.
  5. 7. All living organisms inhabiting the Earth.
  6. 9. A molecule of DNA that is tightly coiled.
  7. 12. Anything that was alive and is now in or on the soil.
  8. 13. Nonliving parts of the environment.
  9. 14. Uses the energy of the sun to synthesize organic compounds from inorganic compounds.
  10. 15. The four steps that a cell goes through in order to divide.
  11. 16. Passing of traits from parents to child.
  12. 19. Something that has given a species an advantage in its environment.
  13. 20. A substance used for destroying insects or other organisms.
  14. 22. The fertilized egg that has one set of alleles from mom and one set from dad.
  15. 26. A change in the nucleotide sequence of an organism’s DNA.
  16. 28. The process of burning something.
  17. 31. Cell A reproductive cell.
  18. 32. The slow, gradual genetic change in an entire population of organisms over a long time.
  19. 37. Substance that is able to kill or inhibit the growth of bacteria.