KEY DEFINITIONS
What is a stimulus?
An event or change that causes a response.
Is hunger an internal or external stimulus?
Internal.
Is a baby sucking for milk innate or learned?
Innate.
What does a maze investigation usually measure?
How behaviour changes with practice.
A bird flying away from a loud noise is an example of what?
A response
What is a response?
The reaction of an organism to a stimulus.
Is loud noise an internal or external stimulus?
External.
Is learning to ride a bike innate or learned?
Learned.
What piece of equipment was used in our investigation to test learning?
A finger maze
A dog salivating when it smells food is an example of what?
An innate response.
What is innate behaviour?
Behaviour an organism is born with; not learned.
Give one example of an internal stimulus.
Hunger, thirst, pain.
Why are reflexes classed as innate behaviour?
They are automatic and present at birth.
In a maze investigation, what is the independent variable?
Attempt number
A rat learns a maze faster each time. Is this innate or learned behaviour?
Learned behaviour
What is learned behaviour?
Behaviour that develops through experience or practice
Give one example of an external stimulus
Light, sound, temperature.
Which behaviour usually takes longer to develop — innate or learned?
Learned behaviour.
What is the dependent variable in a maze investigation?
Time taken to complete the maze
An animal ignores traffic noise after living near a road. What behaviour is this?
Habituation.
What is habituation?
When an organism stops responding to a repeated, harmless stimulus
Why is hunger classed as an internal stimulus?
Because it comes from inside the body.
Give one reason why learned behaviour can be more useful than innate behaviour
It allows animals to adapt to their environmen
Why does time usually decrease with more attempts?
Because the behaviour is learned.
Why might habituation help an animal survive?
It saves energy by ignoring harmless stimuli.