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Trunk and Stem Structure – Introduction to the ISA Certified Arborist Exam
This episode explains tree trunk and stem structure for the ISA Arborist Certification Exam, including bark, sapwood, heartwood, and growth rings.
You’ll learn how stems support trees, transport water and energy, and influence structural stability.
Designed for ISA Arborist Certification candidates needing a clear stem and trunk overview.
🎥 Full video lessons available on YouTube
Search: “Arborist Podcast” or visit: http://www.youtube.com/@arboristpodcast
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By Arborist PodcastThis episode explains tree trunk and stem structure for the ISA Arborist Certification Exam, including bark, sapwood, heartwood, and growth rings.
You’ll learn how stems support trees, transport water and energy, and influence structural stability.
Designed for ISA Arborist Certification candidates needing a clear stem and trunk overview.
🎥 Full video lessons available on YouTube
Search: “Arborist Podcast” or visit: http://www.youtube.com/@arboristpodcast