IB Biology Year 2 Final Exam

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Across
  1. 2. plant vascular tissue that moves water
  2. 4. fingerlike projections that increase surface area for absorption
  3. 6. a protein that lowers activation energy
  4. 8. plant hormone that controls growth towards light
  5. 9. thick muscular blood vessels that carry blood away from the heart
  6. 11. a hormone that increases the heart's contractions
  7. 13. an enzyme that breaks starch into glucose
  8. 16. evaporation of water out a plant's leaves
  9. 19. the variable a scientist manipulates in an experiment
  10. 20. structures that has evolved from a common ancestor and now has different uses
Down
  1. 1. muscular contractions that move food through the intestines
  2. 3. a phylum of plants that have fronds
  3. 5. an animal with radial symmetry and stinging tentacles
  4. 7. space inside the villi that transport fat
  5. 10. phylum of plant that has no vascular tissue
  6. 12. area of growth in a plant
  7. 14. a change in the DNA
  8. 15. heart parts that open and close to let blood flow in the right directions
  9. 17. muscular lower chamber of the heart
  10. 18. plant vascular tissue that moves sugars from source to sink