Geotropism is a term called
when it comes to occurrences pertaining to the growth of plants with respect to
gravity. Gravity as a stimulus affects a plant’s growth, we can see this when
the plant’s parts either grows upwards or downwards. There are two types of geotropism;
this is called positive geotropism and negative geotropism. The difference between
the two lies in the plants growth direction. In positive geotropism, the plant
grows downwards while in negative geotropism, the plant grows upwards.