Question

Two examples of hydrotropism geotropism phototropism and thigmotropism.

Answer 1

hydrotropism:1.root growing downward
2.growth of pullen tubes towards towards ovule.

Answer 2

Answer:

Hydrotropism means the tendency to grow or tend to reach the area with moisture content like the movement of roots towards high humidity levels. Examples of hydrotropism plants are tomato roots, radish roots, or even carrots.

Likewise, if you plant a seed upside down, the roots will still grow downward, while the shoot will still grow upward. Plants that grow on steep hillsides are great examples of geotropism.

Sunflower is a highly phototropic plant. They grow towards the sun and are also seen tracking the movement of the sun throughout the day. That is, the flower keeps changing its direction with the movement of the sun. Sunflower requires more light for its growth and survival.

An example of thigmotropism is the coiling movement of tendrils in the direction of an object that it touches. On the other hand, the folding movement of the Mimosa pudica leaflets can be considered as an example of thigmonastism.