200 questions, 210-minute timer, 76% passing score — just like the real thing
From tree biology to urban forestry — every topic on the ISA exam, covered
What is the primary function of the cambium layer in a tree?
Which pruning cut removes a branch back to its point of origin?
What soil pH range is generally optimal for most tree species?
Which of the following is a sign of advanced internal decay in a tree?
What is the recommended minimum soil volume for a large urban tree?
Which tissue is responsible for the transport of water and minerals from roots to leaves?
Xylem conducts water and minerals upward from the roots. Phloem transports sugars from photosynthesis. Cambium is a growth layer, and heartwood is non-functional older wood.
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