Question

How do some plants show movement

Answer 1

Answer:

The movement of a plant in the direction of stimulus is known as tropic movement or tropism. The movement of a part of the plant towards light is called phototropism. Growth of aerial parts of a plant towards light is an example of phototropism. The movement of a part of the plant towards gravity is called geotropism

Answer 2

Answer: Movement may be defined as the change in position of an organism with respect to its surrounding. Although all the plants are fixed at a place, yet they show movements. In plants the movements are shown by their parts in the form of growth. These movements are caused due to response of plants to external stumili such as light, water, gravity and chemical etc. In plants two types of movements take place:

(1) Tropic movements

(2) Nastic movements

(1) Tropic movement :- The movement of a plant in the direction of stimulus is called tropic movement. It is also called tropism.

(2) Nastic movement :- These are nondirectional movements which takes place neither towards nor away from the stimulus. Example :- "Touch me not".

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Explanation: