1.Plant Responses toPlant Responses to Internal and ExternalInternal and External SignalsSignals 2. Example of Plant Signaling • Etiolation – Plant adaptations for growing…

1.Chapter 39: Plant Responses to Internal and External Signals2. Example of Plant Signaling• Etiolation – Plant adaptations for growing in the dark – Pale stems, unexpanded…

Slide 1Plant Response to Signals Ch 39 Slide 2 Plant Response  Stimuli & a Stationary Life  animals respond to stimuli by changing behavior  move toward positive…

Slide 1 Case Study 12 Gabrielle Yeaney, M.D. Slide 2 19-year-old man with a past medical history of ALL who presents with a several week history of intermittent falls secondary…

Plant Growth Regulators AKA Plant Hormones Plant Growth Regulators - control growth, development and movement PLANT GROWTH REGULATORS (PLANT HORMONES) Internal and external…