Multiple choice

Movements which occur without any external stimuli are termed as

  1. tropic movements

  2. spontaneous movements

  3. seismonastic movements

  4. induced movements

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Spontaneous movements occur autonomously without external stimuli, driven by internal plant factors (like turgor pressure changes). Tropic movements are directional responses to stimuli, seismonastic movements respond to touch/shock, and induced movements require external triggers.