Broca’s Area: Refers to a region of the brain concerned with the production of speech, located in the cortex of the dominant frontal lobe. Damage in this area causes Broca’s aphasia, characterised by hesitant and fragmented speech with little grammatical structure.

Natural Selection: The process of the survival of the fittest, where better adapted organisms are able to continue producing offsprings. This is a theory discovered and proposed by Charles Darwin and is being regarded as the main process bringing about evolution.

Patterned ideas: When the development of cultural evolution takes place and is used by groups. [For example, the making of stone implements a certain pattern and is followed until it is relatively perfected.]