Forensics and behaviour - innate and learned behaviour.

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Forensic and Behaviour

How is the Knowledge of plants used to help solve a crime scene?

Forensic Botanists learn the life cycle of plants and so at a crime scene they will be able to track back the murderer using the knowledge of plants.  Forensic botanists will also identify any leaves found at crime scenes, to work out whether a body has been moved.

Example

A person noticed new shoots growing from nettle plant stems. He knew that these shoots only grow when the plants have been stepped on and so was able to show police the route that the killer took.  He also knew how quickly these shoots grow and told police that the killer was there two weeks before.

Pollen is used to provide more evidence to convict the killer who walked through the plants at the crime scene. The mixture of types of pollen found at the murder scene matched the mixture found on the murderer’s shoes and in his car. This proves that he is the murderer.

Different animals have different sorts of life cycles.  The ways the larvae move their response helps them to find food and so survive. The thing that they move to or away from is the stimulus.

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Automatic behaviour

A baby will cry when it hurts itself, that was not taught; it was a natural response which is automatic.

Learned Behaviour

A bee’s waggle dance is innate behaviour. However, the bees that watch the dance learn where the food is and fly off in its direction. This is learned behaviour.

Social Behaviour

 A behaviour in which animals communicate with or react to other animals of the same species is a social behaviour. Bees also use social behaviour to tell each other where to find food.

Communicating with Pheromones

They are chemical signals that insects release ...

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