which one of the following actions on touch is an example of chemical control?
a) movement of sensitive plant
b) growth of roots towards earth
Movement of sensitive plant is an example of chemical control.
Please refer the link below:
https://www.meritnation.com/ask-answer/question/which-one-of-the-following-actions-on-touch-is-an-example-of/control-and-coordination/7662009
Growing of roots towards earth - Geotropism
Please refer the link below:
https://www.meritnation.com/ask-answer/question/which-one-of-the-following-actions-on-touch-is-an-example-of/control-and-coordination/7662009
Growing of roots towards earth - Geotropism