The stimuli that plants respond to include light, water and gravity.
Plants grow towards light (phototropism). Also in some plants the flowers will follow the sun as it moves across the sky.
Plant roots grow towards water (hydrotropism).
Plant roots grow towards gravity/towards the centre of the earth (geotropism). Source(s): I'm a Biology teacher. this is bullcrap it is fake
An example of a plants response to stimuli is the movement toward sunlight needed for the process of photosynthesis, called heliotropism. Other tropisms include chemotropism (movement in response to chemicals), geotropism (movement in response to gravity), and thigmotropism (movement in responce to contact or touch). These are among many different tropisms experienced in plants.
actin fooding
A plant leans toward a light source.
auxin
auxin
Auxin's cause plants to respond positively to sunlight. Auxin's were the first major plant hormone to be discovered. Auxin's, produced in the meristems of plants, are responsible in promoting cell elongation.
an auxin is basically a cloning agent. You would dip the plant route in to the auxin powder ans then plant the root and it would grow:) This linked with selective breeding
ethylene
Auxin is a hormone that is found solely in plants.
auxin
Auxin hormone
auxin
auxins
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Auxin is a growth hormone, so any control that it has is hormonal in nature; meaning that hormones are allowed entrance to the nucleus and the chromosomal material where they distinctly bind and have definite effects upon chromosomal expression - response to Light included.
A growth hormone called auxin.
auxin
auxin
auxin
indoleaceticacid and auxin (novanet)