Summary 3.6.1.1 Survival and response
Organisms increase their chance of survival by responding to changes in their environment. In flowering plants, specific growth factors move from growing regions to other tissues, where they regulate growth in response to directional stimuli. The effect of different concentrations of indoleacetic acid (IAA) on cell elongation in the roots and shoots of flowering plants as an explanation of gravitropism and phototropism in flowering plants. Taxes and kineses as simple responses that can maintain a mobile organism in a favourable environment. The protective effect of a simple reflex, exemplified by a three-neurone simple reflex. Details of spinal cord and dorsal and ventral roots are not required.
Información del documento
- Nivel de Estudio
- A/AS Level
- Tema
- A Level Biology
- Subido en
- 10 de julio de 2025
- Número de páginas
- 1
- Escrito en
- 2024/2025
- Tipo
- Resumen