ISA Arborist Study Guide Sample test

Questions

Bark, phloem, cambium, xylem - When cutting through a tree with a chain saw or drilling

into a tree, you would pass through (in order)

Growth may be stimulated in lateral buds - If the terminal bud is removed in pruning:

The growth rings of a tree: - Visible because of the rapid growth rate of earlywood relative

to latewood, can be counted on to approximate trees age, can give information about

growth conditions in previous years.

Cambium - layer of cells is responsible for outward growth and increased girth of tree.

Mycorrhizae are: - A symbiotic relationship between fungi and roots.

Douglas-fir (Pseudotsuga menziesii) differs from balsam fir (Abies balsamea) in that: -

They are not in the same genus.

Opposite leaf arrangement is: - When two leaves and/or buds are located at the same node

on a twig.