The growth movement of a plant part in response to the touch of an object is called:

A growing seedling is kept in a dark room. A burning candle is placed near it for a few days. The top part of seedling bends towards the burning candle. This is an example of:

Which of the following acts as a stimulus in the process of hydrotropism?

The climbing organs of plants like tendrils grow towards any support which they happen to touch and wind around the support. This is an example of:

The rate of growth in roots is decreased by one of the following plant hormones. This plant hormone is: