8.1

Responses to the Environment

AP Biology

Responses to the Environment

Signal transduction in organisms

Plant responses to the environment

Major plant hormones

Tropisms: directional growth responses

How phototropism works

Photoperiodism

  • •
  • •
  • •

Plant defense responses

  • •
  • •
  • •
  • •
  • •

Animal responses to the environment

Nervous system responses

  • •
  • •

Endocrine system responses

Homeostasis through feedback loops

  • •
  • •
  • •
  • •
  • •

Animal behaviors

Circadian rhythms

Behavioral ecology

  • •
  • •
  • •
  • •

Vocabulary