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GWTP
About
Mission
Program History
Accreditation and Certification
Available Services
Program Staff
Applicants
Applicants Info
Course Catalog
Course Descriptions
Graduate Profiles
Apply Now
Resources
Client Resources
External Resources
Employer Partners
DONATE
GWTP
Realistic Interactive Tree Trunk Cross Section
Outer Bark: Protective outer layer that shields the tree from injury and disease.
Inner Bark (Phloem): Carries sugars from the leaves to the rest of the tree.
Sapwood: The living outer xylem conducting water and nutrients.
Heartwood: The dense inner wood providing structural strength.
Pith: The central core of the trunk, storing and transporting nutrients.
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