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Help Please !!

If a person wanted to stimulate root growth on a plant cutting, he could apply synthetic ____ to the stem.

a. abscisic acid
b. ethylene
c. gibberellin
d. auxin
e. strigolactone

User Sramij
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Answer:

d, auxins, Auxins are naturally occurring plant hormones. Different hormones perform specialized functions in plants, such as triggering ripe fruit to drop or retaining unripe fruit, elongating stems and stimulating root growth.

User Andrey Nikishaev
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