How is irritability manifested in plants? give an example.

In plants, irritability is very weak compared to animals or even bacteria. But still it is. Several examples can be given. If you expose the leaf to a fire, it will begin to curl under the influence of heat. If the damage is severe, the leaf will separate over time. Leaves can react to chemicals and cold. Flowers can close when it rains. For example – tulips. It is a response to rain, which can wash the pollen out of the flower. But plants do not have reflexes, since they do not have a nervous system.