Isa Arborist Certification Study Guide Chapter 1 With Complete Solutions

Cambium {Ans: The _________ is a layer of meristematic cells located between the phloem and xylem.}Absorbing roots {Ans: Mostly located in the upper 12 inches (30 cm) of soil}Branch collar, Branch bark ridge {Ans: The _________ _________ is formed when trunk tissue grows around branch tissues. As the branch and trunk tissues expand against each other in the branch union, the ________ ____ ________ is formed.}Lenticel {Ans: Small openings in stems for gas exchange}Deciduous, Evergreen {Ans: Trees that lose their leaves in the autumn are called __________. Trees that maintain their leaves for more than one year are called ___________.}Are visible b/c of the rapid rate of earlywood relative to latewood, can be counted to approximate a tree's age, can give information about conditions in previous years {Ans: The growth rings of many trees?}Apical dominance {Ans: The tendency for terminal buds to inhibit the growth of lateral buds is called __________.}Stomata, guard cells {Ans: The opening and closing of _________ allow for gas exchange, and transpiration is controlled by the __________ _________.}Excurrent, Decurrent {Ans: Trees with upright growth and a strong, central leader are said to exhibit __________ growth.}Leaves {Ans: