ISA Arborist Study Guide Sample test questions with correct answers

Bark, phloem, cambium, xylem CORRECT 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 CORRECT ANSWER If the terminal bud is removed in pruning: The growth rings of a tree: CORRECT 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 CORRECT ANSWER layer of cells is responsible for outward growth and increased girth of tree. Mycorrhizae are: CORRECT ANSWER A symbiotic relationship between fungi and roots. Douglas-fir (Pseudotsuga menziesii) differs from balsam fir (Abies balsamea) in that: CORRECT ANSWER They are not in the same genus. Opposite leaf arrangement is: CORRECT ANSWER When two leaves and/or buds are located at the same node on a twig. Quercus rubra CORRECT ANSWER Scientific name of Red Oak. Quercus (Oak) CORRECT ANSWER This genus of tree usually does not have an opposite leaf arrangement.