DENDROLOGY

DENDROLOGY AND SOCIETY

PLANT CLASSIFICATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
a sticky substance that protects a pine tree from diseases and insects when a branch is broken
A
fronds
B
fiddleheads
C
xylem
D
cotyledon
E
resin
Explanation: 

Detailed explanation-1: -Amber is formed from resin exuded from tree bark (figure 9), although it is also produced in the heartwood. Resin protects trees by blocking gaps in the bark. Once resin covers a gash or break caused by chewing insects, it hardens and forms a seal.

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