ISA Certified Arborist Practice Exam

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Prepare for the ISA Certified Arborist Exam with detailed flashcards and multiple-choice questions, each offering hints and explanations. Ace your certification test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which growth pattern is characterized by rounded or broader tree growth?

Excurrent Growth
Incurrent Growth
Decurrent Growth
Concurrent Growth

The correct answer is: Decurrent Growth

Decurrent growth is characterized by a wider tree growth at the base and gradually tapering towards the top, resembling a cone shape. Excurrent growth is the opposite, where the tree grows with a main central leader and branches growing outward. Incurrent growth is when the tree has multiple trunks that grow inward instead of upright. Concurrent growth is when multiple trunks grow simultaneously, resulting in a more balanced and upright appearance. Therefore, options A, B, and D are incorrect as they do not describe the rounded or broader tree growth seen in decurrent growth.