Class 12

India as a Mega Diversity Region

Don’t miss: NEET Rank Predictor 2024 Latest: NEET 2024 Paper Analysis Aarambh 2024: The Biggest Event for IIT JEE and NEET UG Aspirants Mega diversity refers to a country’s ability to exhibit a high level of biodiversity. A biologically diverse nation has at least 5,000 plant species and must be bordered by marine ecosystems. India is one […]

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

Levels of biodiversity

Sociobiologist Edward Wilson popularised the term biodiversity. Biodiversity means the variety in the species of plants, animals, fungi and all the organisms present on the earth. It also covers the genetic information of the organisms. Biodiversity plays a significant role in the working of the different ecosystems. Some of its advantages include the following:  Humans

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

Productive Use Value

These are the commercially useful values that are used to market and sell the product. It could include a variety of wild gene resources that scientists can trade to introduce desirable features into crops and domesticated animals. Many sectors, such as the paper industry, plywood industry, railway sleeper industry, silk industry, textile industry, ivory-works, leather

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

Part of Biosphere Reserves

UNESCO has designated a Biosphere Reserve (BR) as a representative component of natural and cultural landscapes spanning a significant area of terrestrial, coastal/marine ecosystems, or a mix of these ecosystems. BRs are tasked with addressing one of the most pressing issues: how to balance biodiversity conservation, economic and social development, and the preservation of cultural

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

Palaeontology

Palaeontology, sometimes also called palaeontology, is a branch of science concerned with the study of life in the geologic past that entails looking at plant and animal fossils that have been preserved in rocks, including microscopic ones. It is interested in all aspects of ancient life forms’ biology, including their shape and structure, evolutionary tendencies,

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

KEYSTONE SPECIES

A keystone species is a creature that supports defining an entire ecosystem. In absence of keystone species, the ecosystem would be intensely diverse or cease to exist in total. Keystone species have low practical redundancy. This implies that if the species were to vanish from the environment, no other species would be capable to fill its biological function. The ecosystem would be

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

Off-Site Conservation

For a long period of human history, man lived in a hunter-gatherer society, relying mainly on wildlife for nutrition. However, as agriculture and manufacturing grew in importance, the emphasis on biodiversity waned. Indeed, in both wild and domesticated forms, biodiversity provides most of humanity’s food, medicine, clothing, shelter and most of it’s cultural diversity and

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

Hotspots

Introduction Biodiversity refers to the occurence of various types of ecosystems and species of organisms with a whole range of their biotypes and genes that are adapted to different climates, along with their interactions and processes. Walter G. Rosen in 1985 coined the term  biodiversity. Later, the term was popularized by Edward Wilson in 1992. 

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

HISTORICAL BACKGROUND OF ECOLOGY AND ENVIRONMENT

Environmental history is the study of human contact with the natural world through time, with an emphasis on the active role nature plays in influencing human affairs and vice versa. Environmental history is the study of human interaction with the natural world over time. Background information on the subject. Ecology did not have a definite

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET

Nominalistic Species Concept

This question species or this problem of species started when there was an attempt by the biologists to define species and this definition of particular species is called species concept. The most popular concept is that this concept of species goes well for species that reproduce sexually like birds. At the same time, this concept

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Biodiversity and conservation: Endangered species, hotspots, extinction, Biology, Class 12, Ecology and Environment, NEET