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ISA Arborist Certification Glossary /790 Questions And Answers Rated (A+)
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ISA Arborist Certification Glossary /790 QuestionsAnd Answers Rated (A+)
Quiz :abiotic: - √Answer :pertaining to the nonliving parts of an ecosystem,
such as soil particles, bedrock, air, water.
Quiz :abscisic acid (ABA): - √Answer :a plant hormone that stimulates stomatal
closure and promotes seed and bud dormancy.
Quiz :abscission zone: - √Answer :a wall of cells at the base of a petiole, that
allows the leaf to separate from the stem.
Quiz :acceptable risk: - √Answer :the amount of risk that an owner is willing to
accept before tree failure.
Quiz :accessibility: - √Answer :the establishment of a location used to enter a
site.
Quiz :acidic soil: - √Answer :having a pH les than 7.0, in contrast with alkaline
which has a pH that is higher than 7.0.
Quiz :actinomycetes: - √Answer :microorganisms that have some
characteristics of fungi and bacteria. Soil actinomycetes are very tolerant of
water stress and contribute through their actions to that "good earth" aroma
after a rain.
Quiz :action: - √Answer :the number of distinct motions for the carabineers
and snaps gate to be opened.
Quiz :action threshold: - √Answer :the point at which a pest requires the
implementation of a management tactic or control.
Quiz :acute crotches: - √Answer :stronger and wider than a co-dominant
crotch, they are not likely to be a branch that will fail in high winds and are
considered desirable.
Quiz :adaptive growth: - √Answer :an increase in wood production in localized
areas on a tree, in response to a decrease in wood strength or external loading
to maintain an even distribution of forces across the structure.
,Quiz :drip line - √Answer :a boundary on the ground delineated by the branch
spread of a single tree or group of trees.
Quiz :adsorption: - √Answer :adhesion on contact of molecules to the surface
of solids or liquids with which they are in contact.
Quiz :advanced assessment: - √Answer :an assessment performed to provide
detailed information about specific tree parts, defects or site conditions.
Quiz :adventitious/epicormic growth: - √Answer :new growth arising directly
from dormant or new buds on main branches, stems, or trunks often in
response to moisture and light that has no connection to apical meristems.
Quiz :adventitious root: - √Answer :a root arising from parts of the root or the
stem, often in response to moisture and darkness that has no connection to
apical meristems.
Quiz :aeration: - √Answer :the provision of air to the soil to alleviate soil
compaction.
Quiz :aerial lift device: - √Answer :a truck with booms and a bucket, for
elevating a worker to a tree's crown; may also be mounted on a self-propelled
machine known as a mini-lift.
Quiz :aerial rescue: - √Answer :a method of bringing an injured worker down
from a tree.
Quiz :aerial roots: - √Answer :roots that grow from stems toward the soil with
the capacity to become prop roots when they anchor in the soil.
Quiz :aerobic microorganisms: - √Answer :these microbes require free, gaseous
oxygen for growth.
Quiz :aggregate: - √Answer :soil such as sand, silt, or clay, a cluster of soil
particles and organic matter, bonded together by exudates from
microorganisms. It is often used under paved surfaces, as backfill.
Quiz :agroforestry or agro-sylviculture: - √Answer :is a land use management
system in which trees or shrubs are grown around or among crops or
pastureland.
,Quiz :Air Spade™: - √Answer :the commonly used trade name for an air tool.
Quiz :air terminal: - √Answer :the uppermost point of a lightning protection
system in a tree. It is usually made of copper.
Quiz :air tool: - √Answer :also called air excavation device, a device that uses a
jet of compressed air to excavate soil within the root zone of trees and
minimize damage to tree roots.
Quiz :alkaline soil: - √Answer :having a pH greater than 7.0, in contrast with
acidic soil which has a pH lower than 7.0.
Quiz :alkaloids: - √Answer :substances that are produced by trees and contain
nitrogen and are used by humans for medicines.
Quiz :allée: - √Answer :two parallel rows of trees, usually of the same species,
form, and age, often having canopies that have grown together.
Quiz :allelopathy: - √Answer :the production of substances by one tree that
adversely affect other trees nearby. Root exudates from some trees can kill or
stall growth of many soil organisms.
Quiz :alternate leaves: - √Answer :occur when there is one bud or leaf at a
node.
Quiz :amylase: - √Answer :an enzyme that can change the starch chains back to
glucose molecules.
Quiz :anaerobic microorganisms: - √Answer :these microbes live in the absence
of free oxygen.
Quiz :amon-eye nut: - √Answer :drop-forged eye nut is used to fasten through-
hardware anchor(s), used when cabling trees.
Quiz :anchor: - √Answer :the hardware installed to affix and/or terminate a
cable or guy to the tree, ground, or other device.
Quiz :anchor-tree: - √Answer :a tree used to provide supplemental support in a
guying installation.
, Quiz :angiosperms: - √Answer :hardwood trees that have covered seeds such
as oaks and maples. The seed is born within an ovary.
Quiz :anions: - √Answer :negatively charged atoms or molecules in fertilizer
that become available to the plant in water.
Quiz :ANSI: - √Answer :the American National Standards Institute.
Quiz :ANSI A300: - √Answer :the performance parameters established by
industry consensus as a rule for the measure of extent, quality, quantity, value,
or weight used to write specifications.
Quiz :ANSI Z60.1: - √Answer :the American Standard for Nursery Stock, 2014
edition.
Quiz :ANSI Z133: - √Answer :the Safety Standard that provides the most
current criteria in the United States for arborists and other workers engaged in
arboricultural operations.
Quiz :anther: - √Answer :the pollen producing part of a flower.
Quiz :anthocyanin: - √Answer :a chemical that gives the red pigments to leaves
and other plant organs.
Quiz :antitranspirant: - √Answer :a substance applied to the foliage of plants to
reduce water loss.
Quiz :anvil-type pruning tool: - √Answer :a pruning tool that has a sharp
straight blade that cuts against a flat non-cutting surface.
Quiz :apical dominance: - √Answer :the inhibition of growth of lateral buds by
the terminal or apical bud.
Quiz :apical meristem: - √Answer :meristems increase the length of stems and
roots, and produce flowers.
Quiz :apoplast: - √Answer :the framework of non-living cells and cell walls in
wood and bark. The apoplast stores bound water, which does not flow.
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