• A. Boyce
  • C. M. Jenking
Part of the Foundations of Biology book series (FOUNDBIO)


When prodded or exposed to other unfavourable circumstances, most animals respond by moving away or exhibiting aggression. This ability to respond to changes in the environment, known as irritability or sensitivity, is characteristic of all living organisms. Irritability in plants is less easy to demonstrate, as changes in the environment generally evoke rather slow responses, most frequently expressed as changes in the direction of growth. Plant responses are discussed in detail in chapter 13.


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Copyright information

© A. Boyce and C. M. Jenking 1980

Authors and Affiliations

  • A. Boyce
    • 1
  • C. M. Jenking
    • 2
  1. 1.Biology departmentMaynard SchoolExeterUK
  2. 2.Maynard SchoolExeterUK

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