Biology Quarter 2- Extra Credit

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Across
  1. 1. chromosomes condense, centrosomes separate
  2. 7. uncontrollable cell growth
  3. 9. nucleus separates/divides; final sub-phase of mitosis
  4. 10. sister chromatids move to (pull apart) opposite pole
  5. 11. programmed cell death; body signals cell to kill itself
  6. 12. maintaining constant internal conditions despite environmental changes
  7. 13. movement of water from high to low
  8. 14. movement of a substance from high to low; passive
Down
  1. 1. a substance that absorbs light
  2. 2. consists of sub-phases G1, S, and G2
  3. 3. remove germs from hands; should take 30+ seconds
  4. 4. long strand of genes
  5. 5. chromosomes line up in middle of cell
  6. 6. primary pigment involved in photosynthesis that reflects the color green
  7. 8. anything that causes cancer