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ISA Arborist Chapter 11 Questions and Answers Latest 
Update 
True/False - Plant Health Care and Integrated Pest Management are essentially the same thing. - Answer 
-False 
Plant resources, produced through photosynthesis, are allocated among 4 primary functions: - Answer - 
growth 
maintenance (reproduction) 
storage 
defense 
_______ can be described as any factor that limits a plant's ability to acquire sufficient light, water, or 
essential minerals. - Answer -stress 
The _______ and _____...
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ISA Arborist Chapter 11 Questions and Answers Latest 
Update 
True/False - Plant Health Care and Integrated Pest Management are essentially the same thing. - Answer 
-False 
Plant resources, produced through photosynthesis, are allocated among 4 primary functions: - Answer - 
growth 
maintenance (reproduction) 
storage 
defense 
_______ can be described as any factor that limits a plant's ability to acquire sufficient light, water, or 
essential minerals. - Answer -stress 
The _______ and _____...
ISA - Arborist Certification Test - Chapter 10 Answered 
Correctly 
stressed - Answer -If a tree is not well suited for the site in chich it has been planted, it may become 
_______, predisposing it to other problems. 
roots - Answer -A common mistake in diagnosis is to carefully examine the above ground portion of the 
tree, while ignoring the ______. 
abiotic - Answer -Leaf scorch, girdling roots, and mineral deficiencies are examples of ______ disorders 
egg laying - Answer -Insect damage to ...
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ISA - Arborist Certification Test - Chapter 10 Answered 
Correctly 
stressed - Answer -If a tree is not well suited for the site in chich it has been planted, it may become 
_______, predisposing it to other problems. 
roots - Answer -A common mistake in diagnosis is to carefully examine the above ground portion of the 
tree, while ignoring the ______. 
abiotic - Answer -Leaf scorch, girdling roots, and mineral deficiencies are examples of ______ disorders 
egg laying - Answer -Insect damage to ...
ISA Certified Arborist Chapter 12 (Tree Assessment and 
Risk Management) with Correct Solutions 
List the three components of risk assessment. - Answer -potential for failure 
environment that may contribute to failure 
potential target 
By definition, if there is no _______, a tree cannot pose a risk. - Answer -target 
When performing a tree assessment, it is important to develop and stick to a _______ process. - Answer 
-systematic 
For structural strength, branches should be _______ in diamet...
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ISA Arborist Complete Chapters BUNDLED Exams and Solutions 2024 | 2025• By AdelineWhitman
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ISA Certified Arborist Chapter 12 (Tree Assessment and 
Risk Management) with Correct Solutions 
List the three components of risk assessment. - Answer -potential for failure 
environment that may contribute to failure 
potential target 
By definition, if there is no _______, a tree cannot pose a risk. - Answer -target 
When performing a tree assessment, it is important to develop and stick to a _______ process. - Answer 
-systematic 
For structural strength, branches should be _______ in diamet...
ISA Certified Arborist - Chapter 1 with Correct Solutions 
2024 Updated 
Tree biology - Answer -The study of structure and function of trees and the relationship between them. 
(pg 3) 
Cells - Answer -Basic building blocks of structure 
(plural) 
(pg 3) 
Mitosis - Answer -Process of cell division used to create new cells in plants. Genetically identical. 
(FCHP) 
Differentiation - Answer -Process by which cells change their structure and specialize in a particular 
function. 
(pg 3) 
Tissues - A...
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ISA Arborist Complete Chapters BUNDLED Exams and Solutions 2024 | 2025• By AdelineWhitman
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ISA Certified Arborist - Chapter 1 with Correct Solutions 
2024 Updated 
Tree biology - Answer -The study of structure and function of trees and the relationship between them. 
(pg 3) 
Cells - Answer -Basic building blocks of structure 
(plural) 
(pg 3) 
Mitosis - Answer -Process of cell division used to create new cells in plants. Genetically identical. 
(FCHP) 
Differentiation - Answer -Process by which cells change their structure and specialize in a particular 
function. 
(pg 3) 
Tissues - A...
ISA Arborist Certification Study Guide Chapter 1 with 
Correct Answers 
Meristems - Answer -Sites of rapid cell division in the shoot tips, root tips, and cambium are called 
____________. 
Apical - Answer -Meristems located at the end of the shoots are called primary or __________ 
meristems. 
Apical dominance - Answer -The tendency for terminal buds to inhibit the growth of lateral buds is called 
__________. 
Leaves - Answer -The "food factories" of trees are the _________. 
Photosynthesis,...
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ISA Arborist Complete Chapters BUNDLED Exams and Solutions 2024 | 2025• By AdelineWhitman
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ISA Arborist Certification Study Guide Chapter 1 with 
Correct Answers 
Meristems - Answer -Sites of rapid cell division in the shoot tips, root tips, and cambium are called 
____________. 
Apical - Answer -Meristems located at the end of the shoots are called primary or __________ 
meristems. 
Apical dominance - Answer -The tendency for terminal buds to inhibit the growth of lateral buds is called 
__________. 
Leaves - Answer -The "food factories" of trees are the _________. 
Photosynthesis,...
ISA Certified Arborist Exam 2024 Update Answered 
Correctly 
Chlorophyll - Answer -Makes the color or the leaves green so photosynthesis can take place 
Transpiration - Answer -loss of water vapor from leaves 
Bark - Answer -protects branches & trunk of tree from injury 
Excurrent Growth - Answer -Orientation of growth in external cell 
M.A.D.HORSE - Answer -Opposite leaf arrangement 
MAPLE 
ASH 
DOGWOOD 
HORSECHESTNUT 
pH - Answer -Measure of acidity or alkaline from 0 to 14 
<7 acidic 7>...
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ISA Arborist Complete Chapters BUNDLED Exams and Solutions 2024 | 2025• By AdelineWhitman
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ISA Certified Arborist Exam 2024 Update Answered 
Correctly 
Chlorophyll - Answer -Makes the color or the leaves green so photosynthesis can take place 
Transpiration - Answer -loss of water vapor from leaves 
Bark - Answer -protects branches & trunk of tree from injury 
Excurrent Growth - Answer -Orientation of growth in external cell 
M.A.D.HORSE - Answer -Opposite leaf arrangement 
MAPLE 
ASH 
DOGWOOD 
HORSECHESTNUT 
pH - Answer -Measure of acidity or alkaline from 0 to 14 
<7 acidic 7>...
ISA Arborist Study Guide Sample Test with Correct 
Answers 2024 Updated 
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 g...
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ISA Arborist Complete Chapters BUNDLED Exams and Solutions 2024 | 2025• By AdelineWhitman
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ISA Arborist Study Guide Sample Test with Correct 
Answers 2024 Updated 
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 g...
ISA Arborist Chapter 13 with Correct Answers 2024 
Name five ways that trees can be adversely affected by construction. - Answer -root injury 
soil compaction 
injury to trunk or branches 
grade change 
excavation/severing root system 
When soil is compacted, the _______ _______ between soil particles is reduced. - Answer -pore space 
The phases of land development are... - Answer -site clearing and demolition 
rough grading 
utility installation and grading 
construction 
final grading and land...
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ISA Arborist Complete Chapters BUNDLED Exams and Solutions 2024 | 2025• By AdelineWhitman
Preview 1 out of 3 pages
ISA Arborist Chapter 13 with Correct Answers 2024 
Name five ways that trees can be adversely affected by construction. - Answer -root injury 
soil compaction 
injury to trunk or branches 
grade change 
excavation/severing root system 
When soil is compacted, the _______ _______ between soil particles is reduced. - Answer -pore space 
The phases of land development are... - Answer -site clearing and demolition 
rough grading 
utility installation and grading 
construction 
final grading and land...
ISA - Arborist Certification Test - Chapter 3 2024 Updated 
with Correct Solutions 
The majority of fine, absrobing roots of a tree are in the __ and __ horizons. - Answer -o, a 
Driving vehicles across wet soil will _____ the soil and destroy soil _____ _____. - Answer -compact, pore 
space 
_____ ______ is the soil property that resists changes to the pH. - Answer -Buffering Capacity 
True/False - Negatively charged clay particles hold cations near their surface. - Answer -True 
______ _______...
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ISA Arborist Complete Chapters BUNDLED Exams and Solutions 2024 | 2025• By AdelineWhitman
Preview 1 out of 2 pages
ISA - Arborist Certification Test - Chapter 3 2024 Updated 
with Correct Solutions 
The majority of fine, absrobing roots of a tree are in the __ and __ horizons. - Answer -o, a 
Driving vehicles across wet soil will _____ the soil and destroy soil _____ _____. - Answer -compact, pore 
space 
_____ ______ is the soil property that resists changes to the pH. - Answer -Buffering Capacity 
True/False - Negatively charged clay particles hold cations near their surface. - Answer -True 
______ _______...
Accident - ️️discredited term for unplanned, undesirable event that could result in unintentional injury/property damage attributed to fate/bad luck 
 
Accident Pyramid - ️️illustration of Herbert Heinrich principles of accident prevention-----bottom has thousands of unsafe acts/conditions, led to 300 close calls, 29 minor injuries & ultimately one major fatality/injury at top 
 
Accrual Accounting - ️️accounting methodology that records revenues & costs when they occur 
 
ACSR - ️...
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Accident - ️️discredited term for unplanned, undesirable event that could result in unintentional injury/property damage attributed to fate/bad luck 
 
Accident Pyramid - ️️illustration of Herbert Heinrich principles of accident prevention-----bottom has thousands of unsafe acts/conditions, led to 300 close calls, 29 minor injuries & ultimately one major fatality/injury at top 
 
Accrual Accounting - ️️accounting methodology that records revenues & costs when they occur 
 
ACSR - ️...