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ISA Certified Arborist Exam Question and answers rated A+ 2023
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ISA Certified Arborist Exam
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ISA Certified Arborist ExamChlorophyll - correct answer Makes the color or the leaves green so photosynthesis
can take place
Transpiration - correct answer loss of water vapor from leaves
Bark - correct answer protects branches & trunk of tree from injury
Excurrent Growth - correct answer Orientation of growth in external cell
M.A.D.HORSE - correct answer Opposite leaf arrangement
MAPLE
ASH
DOGWOOD
HORSECHESTNUT
pH - correct answer Measure of acidity or alkaline from 0 to 14
<7 acidic 7> Alkaline
7 Neutral
Decurrent Growth - correct answer rounded or broader tree growth
Deciduous - correct answer loss of leaves in the fall
Respiration - correct answer process of converting food into energy
Stomata - correct answer pours in leaves that open and close to allow for water
transportation
Xylem - correct answer transportation for the water and minerals throughout the tree
Phloem - correct answer Conducts Carbohydrates
Osmosis - correct answer Process how water enters roots
Organic Matter - correct answer organic components that are decaying matter to help
increase water holding & nutrients to improve soil structure
Cation Exchange Capacity (CEC) - correct answer measure of soils capacity to
attract, retain & exchange a positive charge
Girdling Roots - correct answer roots that grow across or around the trunk, potentially
choking off vascular tissues in a tree. May cause decline or death
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