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Learning Outcomes  👉 What is biodiversity  👉 Origin of biodiversity  👉 Nature of biodiversity  👉 Interrelationships of organisms  👉 How to measure biodiversity  👉 Biodiversity of Bangladesh  👉 Risks and remedies of biodiversity  What is Biodiversity? The term biodiversity describes the great variety of life on Earth. Biodiversity refers to the variety of living things, including plants, animals, and microorganisms. We don't know for sure exactly how many different organisms there are on Earth. However, scientists estimate that there are about 8-14 million (80 to 140 lakh) different species of organisms on this Earth. Some believe that the number is higher. But whatever the number, most of these organisms are unknown to us. Only 1.2 million (12 lakh) species have been identified and described so far, most of which are insects. This means that billions of other organisms are still mysterious and unknown to us. Origin of Biodiversity The unique characteristics of all sp

What is an aristocrat?

What is an aristocrat?

An aristocrat is a person who belongs to the upper social class, often defined by hereditary titles or land ownership. In many societies throughout history, the aristocracy has held a significant amount of power and influence over political, economic, and social affairs.

The origins of aristocracy can be traced back to feudal societies, where a person's social status was determined by their relationship to the land and the monarch. Those who held titles of nobility, such as dukes, earls, and barons, were considered part of the aristocracy and were often granted privileges such as the right to own land, participate in government, and access education and culture.

In modern times, the concept of aristocracy has evolved, and many countries have abolished hereditary titles and replaced them with merit-based systems of social mobility. However, in some countries, such as the United Kingdom, a system of aristocracy still exists, and individuals may hold titles such as Duke, Earl, or Baron.

Aristocrats are often associated with wealth, privilege, and a luxurious lifestyle. They may have access to exclusive clubs, private schools, and prestigious social events, and their status may be reinforced through their connections to other members of the aristocracy.

Critics of aristocracy argue that it perpetuates inequality and restricts social mobility, while proponents argue that it provides stability and continuity in society and preserves cultural traditions.


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