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Cognitions, emotions and behaviours are products of the anatomy and physiology of our nervous and endocrine systems. There are biological correlates of behaviour.

Martinez & Kesner (1991) – An experiment to determine the role of neurotransmitter acetylcholine on memory formation (in hippocampus) of mazes on rats. Rats were trained to go through a maze and receive ...
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Behaviour can be innate because it is genetically based and can be inherited.

Heston (1966) – study whether schizophrenia is genetic or not with adopted children, assuming if there are any physical and behavioural similarities between offspring and parents, that is due to genetics. He...
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Discuss the relative importance of genetic and cultural evolution in the recent evolution of humans.

· Changes in genotype (genetic evolution via natural selection) have lead to cultural evolution in humans by promoting intelligent behaviour · Larger brain sizes have promoted increased learning capacity / g...
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Discuss the incompleteness of the fossil record and the resulting uncertainties about human evolution.

Incompleteness of the Fossil Record ▪ Fossilisation is an exceptionally rare occurrence that requires an unusual combination of special conditions ▪ Most living things tend to decompose rapidly (or be scaven...
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Describe one example of transient polymorphism.

A polymorphism is the occurrence of two or more clearly different phenotypes within the same population of a species - it reflects the effects of more than one allele in the gene pool Transient Polymorphism ...
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