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Definition of Species Richness

which one of ...

Question

which one of the following is not observed in biodiversity hotspots ?
(1) Species richness
(2) Endemism(3) Accelerated species loss(4) Lesser inter-specific competion(

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Solution

Accelerated species loss

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Q. Assertion :Biodiversity hotspots are the regions which possess high levels of species richness, high degree of endemism and no loss to habitats. Reason: Total number of biodiversity hotspots in the world is 32 with two of these hotspots found in India.

Q. Regions with very high levels of species richness and high degree of endemism are called 'Biodiversity hotspots'.

Q. Which of the following statements regarding biodiversity hotspots are incorrect?
(i) High endemism
(ii) High level of species richness
(iii) Total number is 34 in the world
(iv) Five of these occur in India
(v) High alien species invasion
(vi) Cover less than

2 %

of the earth's land area; but if properly conserved, they can reduce extinctions by about

30 %

Q. With reference to biodiversity, which of the following statements is/are correct ?
1. Species richness and high degree of endemism are important criteria for identifying biodiversity hot spots.
2. Species diversity is highest in the tropics and decreases towards the poles.
3. Biodiversity conservation may be in situ as well as ex situ.
Select the correct answer using the code given below :

Q. Which one of the following is not observed in biodiversity hotspots?

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Definition of Species Richness

Standard XII Biology

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