Key terms
A detectable change in the environment
What is a stimulus?
A behaviour present at birth.
What is innate behaviour?
Directional movement towards or away from a stimulus.
What is taxis?
Photo-
What is light?
A growth response towards or away from a stimulus.
What is a tropism?
The reaction to a stimulus.
What is a response?
A behaviour developed through experience.
What is learned behaviour?
Non-directional change in movement.
What is kinesis?
Chemo-
What are chemicals?
The main plant growth hormone.
What is auxin?
The ability to survive and reproduce.
What is fitness?
Spider web construction is this type of behaviour.
What is innate behaviour?
Movement towards light.
What is positive phototaxis?
Gravi/Geo-
What is gravity?
Plant growth occurs in these regions.
What are meristems?
A structure that detects a stimulus.
What is a receptor?
The process that favours beneficial behaviours.
What is natural selection?
Change in speed of movement.
What is orthokinesis?
Thigmo-
What is touch?
Rapid non-directional plant movement.
What is a nastic response?
An advantage that improves survival or reproduction.
What is an adaptive advantage?
This is an advantage of learned behaviour because it allows organisms to respond to environmental change.
What is adaptability?
Change in turning rate.
What is klinokinesis?
Rheo-
What is current?
The pressure responsible for many nastic responses.
The pressure responsible for many nastic responses.