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Archaeological Evidence:
The study of human antiquities, especially of prehistoric period is known as archaeology. The biological and cultural evolution of man proceeded side by side and the two influenced each other. Like the physical remains of man, his cultural remains also lie buried in the ancient deposits. Often, the two categories of evidence are found together in the same layers of the rock. With the passage of time, and the increasing capacity of his brain and development in other bodily organs, man's culture became more and more varied and complex. He learnt the use of new materials for making tools and developed new techniques for improving them. The use of tools had a tremendous impact on increased access to food and therefore on cooperative living in colonies. In many areas, archaeological remains show reindeer to be the principal source of meat they ate.
Define the Fixed Type of Macrophages The fixed types are located permanently in certain organs, which include: Lungs - alveolar macrophages. Liver - kupffer cells.
Define the Non-Excretory Functions of Kidney Though the major contribution of the kidneys, as you have learnt so far, is to form urine and to maintain the constancy of internal
Oxidoreductases To this group (EC 1) beIongs all enzymes catalyzing oxidation-reduction reactions. Common names include dehydrogenases, oxidazes, reductases and catalases.
During which equinoxes are day and night of equal length around the world: Autumnal And Vernal Equinoxes
Depletion of Ozone Layer: Since the last decade or so, there is concern about the possible reduction in the ozone layer surrounding the earth. Now the question arises, what h
How water can be decomposed You will require a six-volt storage battery or accumulator or a battery of six dry cells for this interesting experiment. Take away the insulation f
What are the part of the ear.
what is threshing??
Modern Concept of Preventive Medicine: Now let us see how the current concept of preventive medicine came into being. The story began only 150 years ago. People returning
Air expands when heated To show that air expands when heated, fit an electric light bulb flask or a bottle with a single- whole stopper or cork which has a 30-cm length of glas
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