Question

define phototropism; geotropism; hydrotropism and thigmotropism

I will mark u as brainlist​

Answer 1

photo tropism is the movement of plants towards or away from the sunlight due to the action of light on plant.

geotropism means the moment due to the earths gravity for example movement of root towards earth.

the movement due to the water is said to be hydrotropism

the moment due to the external stimuli as touch is said to be thigmotropism.ex touch me not plant.

Answer 2

Answer:

1. The process of a plant turning towards or away from light is called phototropism.

2. The growth of parts of plant in response to the force of gravity is called geotropism.

3. The growth of turning of plant roots toward or away from moisture is called hydrotropism.

4. The turning or bending of a plant or other organism in response to a touch stimulus