Maryland Tree Expert Practice Test 2026 – Your All-in-One Resource for Exam Success!

The three major parts of a tree are the root system, the stem (or trunk), and the crown. Roots anchor the tree and absorb water and nutrients from the soil, the stem provides support and acts as a conduit to transport water and nutrients, and the crown up top includes the branches and leaves where photosynthesis happens. This three-part view captures the primary structural and functional divisions a tree relies on. The other options mix components that belong to the crown or stem, or focus on wood anatomy, rather than identifying the main structural parts in a tree.