AQA A-LEVEL: Approaches - The Biological Approach
THE BIOLOGICAL APPROACH ASSUMPTION is that all behaviour is driven by physiological factors like genetics, biological structures and neurochemistry. Focuses on NATURE shaping our behaviour. EVOLUTION AND BEHAVIOUR (suggested by Charles Darwin) Evolution - Gradual change within a species over time in response to environmental pressures Natural Selection - Inherited characteristics which enhance survival, passed on to the next generation Adaption - A behaviour or trait which increases successes or survival and reproduction Survival of the Fittest - Only those best suited to the environment will survive and reproduce Sexual Selection - When individuals possess features that make them attractive to the opposite sex and helps them compete with the same sex for mates, increases reproductive success Phobias such as arachnophobia can be seen to be adaptive as it increases survival. Living as a social species offers advantages, survival would decrease ...