Photochromis thpigment responsiblfor
A) thigmotropism.
B) phototropism.
C) gravitropism
D) photoperiodism.
E) senescence.
Correct Answer:
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Q79: Thplant hormonthat initiates formation of lateral roots
Q80: Thonly plant hormonthat is gaseous is
A)auxin.
B)gibberellin.
C)cytokinin.
D)abscisic acid.
E)ethylene.
Q81: If peach trees growing in specific milclimates
Q82: _ refers to thphasfrofull maturity until theventual
Q85: Four of thfivanswers listebelow aruseful to flowers
Q86: Four of thfivanswers listebelow arhaploid.Select thEXCEPTION.
A)gametophyte
B)zygote
C)sperm
D)egg
E)gamete
Q87: Day-neutral plants are
A)short-day plants.
B)able to form flowers
Q88: Photoperiodisis the
A)duration of flowering in a plant.
B)amount
Q89: Which color of light is most effectivin
Q117: Abscission can affect
A) leaves.
B) fruits.
C) flowers.
D) all
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