14
May
Animal Response To Stimuli. The increased secretion of saliva on seeing our favourite food is the response to the flavour of the food. Certain behaviors such as mating or nesting are responses to pheromone stimuli. Select pictures of animal sensory receptors ahead of time to provide additional examples for students. A bright flash of light makes us wink or close our eyes where light is the stimulus.
WEEK 5 RESPONSE TO ENVIRONMENTAL STIMULI As a result of cold winter weather stimulus some animals will hibernate. Choose pictures of different types of animals such as snails dogs or cats fish and insects to broaden the discussion. Nastic movements are still responses to stimuli but their direction is independent of the direction of the stimuli. Animal Responses Taxis movement of an animal towards or away from a stimulus Kinesis an animals non directional activity speed response to a stimulus Homing ability to find and return to a home site Migration movement of animals between two habitats 46. That hypothesis has been supplanted by one that holds that the insect has a central nervous system with built-in patterns of behaviour or instincts that can be triggered. It describes how farm animals respond to a variety of stimuli through reflexes and various levels of learning some remarkable.
Stimulus Response was produced in conjunction with scientists from Cambridge and Bristol.
Some animals hibernate for part or all of the winter. In most animals this job is done by the central nervous system CNS. All living organisms respond to stimuli by moving towards or away from it. Transposition experiments show that animals can respond to relationships between stimuli varying along a particular continuum of physical characteristics. They filter out certain stimuli that surround them and react to others they choose to accept. If a chameleons skin colour is similar to the color of its environment it will blend in with the environment and be very difficult to see this is called camouflage.