Spring BM 2 - Biology

12345678910111213141516171819202122232425262728293031323334
Across
  1. 5. Last trees to become established in a climax community.
  2. 7. controls what enters and leaves the cell
  3. 11. Live in extreme environments.
  4. 12. Cells made in meiosis are genetically _________.
  5. 14. Organelle NOT found in animals, fungi, or bacteria.
  6. 20. Rapid bursts of change followed by periods of no change.
  7. 22. Selection pattern favoring only ONE extreme.
  8. 23. This exchange of DNA occurs during meiosis.
  9. 27. States that genes (traits) separate independent of each other.
  10. 30. Smallest levels of organization, most specific
  11. 31. Traits must be ____________ in order to change a population overtime due to evolution.
  12. 33. This consumer is most impacted by DDT in a food chain with 4 trophic levels.
  13. 34. Makes chemical energy for the cell.
Down
  1. 1. Tests a hypothesis
  2. 2. All the living things in the area. ex) grass and prairie dogs
  3. 3. Convert nitrogen gas into usable forms.
  4. 4. Caused by increased greenhouse effect.
  5. 6. This type of reproduction involves two organisms and increases genetic variation.
  6. 8. First organisms to grow in an area during secondary succession.
  7. 9. plants response to gravity
  8. 10. Chromosomal mutations that involved two different chromosomes.
  9. 13. Type of frameshift mutation that removes a base.
  10. 15. Viral replication cycle composed of 5 steps that immediately destroys the host
  11. 16. This type of solution will cause a cell to shrink.
  12. 17. Type of nucleic acid found in both viruses and bacteria.
  13. 18. Growth pattern without limiting factors
  14. 19. This causes increased chances of skin cancer.
  15. 21. Number of cells produced during mitosis.
  16. 24. ONLY RNA contains this nitrogen base.
  17. 25. To speed up chemical reactions enzymes _______ activation energy.
  18. 26. plant cells form a cell _________ during cytokinesis
  19. 28. Species that outcompete the organisms already established in an area.
  20. 29. Type of diffusion that uses a protein channel but DOES NOT require energy.
  21. 32. Transfers amino acids to the ribosome.