Words to Describe chemotropic

Things chemotropic often describes ("chemotropic ________")

• stimulus
• substances
• attraction
• factor
• responses
• factors
• stimuli
• activity
• influence
• mechanism
• bacteria
• action
• curvature
• growth
• relations
• molecules
• turning
• guidance
• molecule
• response
• nature
• character
• behavior
• reaction
• irritability
• agent
• reactions
• influences
• effect
• substance