If a woody plant in dormancy is placed in a
greenhouse so that only one limb is exposed to the
cold winter temperatures, eventually the
a. whole plant breaks dormancy and starts
growing.
b. parts of the plant that were inside the greenhouse
start blooming.
c. limb exposed to the low temperature dies.
d. limb exposed to the low temperature breaks
dormancy.
e. limb exposed to the low temperature never forms
seeds.
Answer: d
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