Q. Spiral developement of tendrils? (BHU 1989, CBSE 1999, 1995), (MPPMT 1992, CPMT 1993) ( CETCHO 2000,AIIMS 2000) (JK CMEE 2004) (Solved)

1. Thigmotropism

2. Thermotropism

3. Hydrotropism