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Class 12
Botany :-NCERT Solutions - Biodiversity.

Question 2
How do ecologists estimate the total number of species present in the world?


Answer

Question 4
What is the significance of the slope of regression in a species − area relationship?


Answer


Question 5
What are the major causes of species losses in a geographical region?


Answer

Question 6
How is biodiversity important for ecosystem functioning?


Answer

Question 7
What are sacred groves? What is their role in conservation?


Answer

Question 8
Among the ecosystem services are control of floods and soil erosion. How is this achieved by the biotic components of the ecosystem?


Answer

Question 9
The species diversity of plants (22 per cent) is much less than that of animals (72 per cent). What could be the explanations to how animals achieved greater diversification?


Answer

Question 10
Can you think of a situation where we deliberately want to make a species extinct? How would you justify it?


Answer

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