ISA Arborist Study Guide Sample test questions Latest update 100% Correct

Bark, phloem, cambium, xylem - ANSWER-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 - ANSWER-If the terminal bud is removed in pruning: The growth rings of a tree: - ANSWER-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 - ANSWER-layer of cells is responsible for outward growth and increased girth of tree. Mycorrhizae are: - ANSWER-A symbiotic relationship between fungi and roots. Douglas-fir (Pseudotsuga menziesii) differs from balsam fir (Abies balsamea) in that: - ANSWER-They are not in the same genus. Opposite leaf arrangement is: - ANSWER-When two leaves and/or buds are located at the same node on a twig. Quercus rubra - ANSWER-Scientific name of Red Oak. Quercus (Oak) - ANSWER-This genus of tree usually does not have an opposite leaf arrangement. Pines - ANSWER-These conifers have needles in bundles. Available oxygen and water - ANSWER-The primary factor in controlling the depth, spread, and distribution of tree roots in the soil is/are: The most fibrous and absorptive portion of a tree's root system is found in? - ANSWER-Are in the upper 6 inches of soil. Water will drain very slowly out of the planting hole. - ANSWER-If a planting hole in a clay soil site is backfilled with sandy soil. When soil is compacted: - ANSWER-Total pore space and the percentage of macropores are reduced.