Biodiversity and Conservation
Madhya Pradesh Board · Class 11 · Geography
Flashcards for Biodiversity and Conservation — Madhya Pradesh Board Class 11 Geography. Quick Q&A cards covering key concepts, definitions, and formulas.
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What is biodiversity? Provide a simple definition.
Answer
Biodiversity is the number and variety of organisms found within a specified geographic region. It comes from 'Bio' (life) and 'diversity' (variety). It refers to the varieties of plants, animals, and…
What are the three levels at which biodiversity can be discussed?
Answer
The three levels of biodiversity are: (1) Genetic diversity - variation of genes within species, (2) Species diversity - variety of species in a defined area, (3) Ecosystem diversity - broad differenc…
Explain genetic diversity with an example from humans.
Answer
Genetic diversity refers to the variation of genes within species. For example, all humans belong to the homo sapiens group but differ in characteristics like height, color, and physical appearance du…
What are biodiversity hotspots and why are they important?
Answer
Biodiversity hotspots are areas that are exceptionally rich in species diversity. They are important because they contain a large number of the world's species in relatively small areas. These areas a…
How long has biodiversity been evolving on Earth, and what percentage of species that ever lived are now extinct?
Answer
Biodiversity as we have today is the result of 2.5-3.5 billion years of evolution. Approximately 99% of the species that have ever lived on Earth are now extinct. The average half-life of a species is…
Where is biodiversity richest on Earth and how does it change toward the poles?
Answer
Biodiversity is consistently richer in the tropics. As one approaches the polar regions, one finds larger and larger populations of fewer and fewer species. Tropical forests are very rich in biodivers…
What are the three main roles that biodiversity plays?
Answer
Biodiversity plays three main roles: (1) Ecological role - species perform functions in ecosystems like energy capture, nutrient cycling, climate regulation, (2) Economic role - provides resources lik…
How does species diversity affect ecosystem stability?
Answer
The more diverse an ecosystem, the better are the chances for species to survive through adversities and attacks, making it more productive and stable. The loss of species decreases the system's abili…
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