Evolution of human kind, Biology

The evolution of human kind can be regarded as the climax of phylogenic history of organisms. In the previous units of this block as well as the previous block we have detailed for you the mechanisms and the processes of evolutionary change. In such discussions, specific examples from both the animal and the plant situations were chosen and explained. However, it should be conceded that in this course on

Evolution, it was not possible for us to discuss the evolution of various groups beyond the species level. Nevertheless the evolution of the lineage that eventually produced man is indeed important. Since we are the current end products of the process and are capable, we can look back into the history and at the remains of the organisms that have been a part and parcel of this lineage.  The fossil record of the human history, although rudimentary, has been quite helpful in determining largely what we are seeking, namely a coherent history and evolution of human species. It is rather difficult to say that natural selection also sought and directed the evolution of man. It could be that the selection process operated mechanically to produce populations of organism's adapted to produce more organisms. This observation is obvious if one looks at the fossil history from early primates to the present man. In this unit we will be analysing the trends in human evolution starting from early primates. Such trends are a reality only for us. The last unit of this block will be concerned with certain aspects of cultural and social evolution of man with a special emphasis on his future course of evolution. Some of the questions we would like to raise in the next unit are what direction the human evolution is taking and whether man is capable of steering his own evolution. The answers for such questions may not readily be forthcoming but an attempt will still be made.

Posted Date: 4/5/2013 3:05:13 AM | Location : United States







Related Discussions:- Evolution of human kind, Assignment Help, Ask Question on Evolution of human kind, Get Answer, Expert's Help, Evolution of human kind Discussions

Write discussion on Evolution of human kind
Your posts are moderated
Related Questions
What are sarcomeres? Sarcomeres are the contractile units of the muscle tissue formed of alternating actin blocks (thin filaments) and myosin blocks (thick filaments). Various

Lungs - Respiration Lungs can be simple, characterised by air exchange with surrounding environment by diffusion only. These are called the diffusion lungs and are present in

Functions of cerebrum The forebrain is otherwise called as ‘cerebrum'. It is highest centre for controlling several functions in the body, The most interesting aspect

a) What is the significance of the epiglottis in human body? b) What happens to the glycogen concentration in the liver cells when the level of adrenaline enhances in the blood

How does the excretory system of nematodes work? The metabolic residuals of nematodes are collected by two longitudinal lateral excretory channels that open in one excretory po

How is the body of gastropods divided? The body of gastropods is separated into three main portions: a) Head, b) The visceral mass and c) Foot.

Which terrestrial vertebrate group is extremely rare in deserts? The Amphibians are terrestrial vertebrates very rare in desert environments (although there are a few species a

Altered Protein Metabolism - Metabolic Response to Injury? Urinary nitrogen loss is extensive following injury, Trauma accelerates nitrogen turnover. In unfed patients, tissue

Explain the barrier function in the cornea. Barrier Function: It is the first line of barrier between the external environment and the corneal stroma. The superficial epi

ELECTROCONVULSIVE THERAPY: 1)  ConceptlMeaning of  Electroconvulsive Therapy  (ECT) Electroconvulsive Therapy (ECT) is a painless form of  electric therapy. It is called as ph