Science Test 2

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Across
  1. 2. Created to live without chlorophyll
  2. 5. A fungus and an alga working together as one plant form a...
  3. 12. Single cells that some plants produce intstead of seeds
  4. 13. The age of a tree can be determined by counting the...
  5. 14. The plant with a fruiting body
  6. 17. The tallest kind of tree
  7. 20. In the hot dry climate of the southwestern states, the ... grows
  8. 21. The fungus that converts sugar into alcohol and carbon dioxide
  9. 22. The largest kind of tree
  10. 23. The green plantsthat have no true leaves, stems, or roots
Down
  1. 1. A plant that lives for two years and then dies
  2. 3. Trees that bear cones instead of flowers
  3. 4. A plant that does not die after one season of growth but continues to live and grow for many seasons
  4. 6. An attractive tree with frosty needles, often planted as an ornamental.
  5. 7. The ... has an attractive reddish wood with an oil that produces a pleasant fragrance
  6. 8. A plant that has fronds and produces spores instead of seeds
  7. 9. Growth in a tree takes place in the ... layer immediately under the bark
  8. 10. Scientists who study trees
  9. 11. Fungi that feed on dead matter
  10. 15. A tall plant with a single woody stem
  11. 16. Roots of ferns
  12. 18. Trees that lose their leaves in the fall
  13. 19. Smallest of all green plants
  14. 20. The only conifers with bundles of needles