3. Plants respond in other ways besides tropisms. a. What is the name for a plant's non-directional response to a stimulus? 1 b. How are tropisms different from these responses?​

Nastic movement the non-directional movement (of plants) in response to a stimulus (e.g. humidity, temperature, light irradiance, nutrients, gravity

Explanation:In tropism there is directional movement of plant in response to the surrounding like gravity or light but the direction of nastic movement is independent . in tropism stimulus controls the orientation of the growth , in nastic movements stimulus triggers response

Hope this helps you

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.