Explain basic tree structure and growth.

Explanation should include

• parts of a tree (i.e., root system, crown, leaves, branches, trunk, bark, flowers, fruit)
• how trees grow (seedling or cuttings)
• definition and identification of
  • cambium
  • phloem and xylem
  • pith
  • sapwood and heartwood
  • growth rings.

Process/Skill Questions:

• How do trees develop?
• What environmental factors affect how trees grow and reproduce?
• What are the limiting factors of tree structure and growth?