Question

Name the part of nervous system which helps in communication between the central nervous system and other parts of the body. What are the two components of this system ?

Leaves of chhui-mui plant begin to fold up and droop in response to a stimulus. Name the stimulus and write the cause for such a rapid movement. Is there any growth involved in the movement ?

Define geotropism in plants. What is meant by positive and negative geotropism ? Give one example of each type.

Design an experiment to demonstrate hydrotropism.

Observe a plant growing near a window and explain how it responds to light and gravity. Identify the types of tropic movements involved and describe the role these movements play in the plant's survival.