Question

How does the evolutionary perspective explain the biological basis of behaviour?

Answer 1

Answer:

The evolutionary perspective explains the biological behaviour by demonstrating the behavioural and physiological changes that occur as a result of evolution being necessary for the survival of species. ... The human brain has evolved from smaller to bigger in size. Human beings can walk upright on their two legs.

Explanation:

Answer 2

Evolutionary perspective and the biological basis of behaviour

Explanation:

• The evolutionary psychological perspective is integrated with biological evolutionary theories and facts and describes the evolution of various traits, behaviour, cognitive abilities and how each individual differs in achieving these abilities as evolutionary goals.
• An evolutionary process refers to the gradual and slow, orderly and sequenced biological and physiological changes, which resulted in various species different from their ancestors or pre-existing forms in their phylogenetic tree, in response to demands from their environment and their adaptation towards those demands.
• Evolution due to environmental demands made man respond differently from his ancestors and developed higher cognitive skills like perception, thinking and reasoning, language development, specialized skills, and other behavioural evolutionary changes.
• These made him understand the various things in the universe and invent innumerable things to live in a better way than his ancestors.  
• The complexity of behaviour increased with evolution and with an increase in the size of the brain. Thus both physiological and biological changes resulted in various behavioural changes due to evolution over the years.