Phototropism: Response of plant parts to the boost of light particularly daylight. E.g shoot of light bowing towards the wellspring of light
Geotropism: Response of plant parts to the boost of gravity. Roots are emphatically geotropic. Case youthful seedling put with root and shoot put on a level plane, the root after some time begin developing downwards
Thigmotropism: Response to the boost of touch. E.g rings, leaves of touchy plants and flesh eating plants
