KCET · BIOLOGY · STD 12 - 13. Biodiversity and Conservation
One of the following statements is incorrect with reference to biodiversity. Identify it.
- A The richest reservoirs of animal and plant life (high species richness) with few or no threatened species are called "biodiversity hotspots".
- B Biodiversity increases from higher altitudes to lower altitudes.
- C Biodiversity decreases from the equator to polar regions.
- D Depletion in genetic diversity of crop plants is mainly due to the introduction of better varieties with high yield, disease resistance, etc.
Answer & Solution
Correct Answer
(A) The richest reservoirs of animal and plant life (high species richness) with few or no threatened species are called "biodiversity hotspots".
Step-by-step Solution
Detailed explanation
(A) The richest reservoirs of animal and plant life (high species richness) with few or no threatened species are called "biodiversity hotspots".,
Biodiversity hotspots are areas with high density of biodiversity or megadiversity which are also the most threatened ones.
They are determined mainly by three factors.
(i) Degree of endemism.
(ii) Degree of threat to habitat due to its degradation and fragmentation.
(iii) Number of species/species diversity.
Biodiversity hotspots are areas with high density of biodiversity or megadiversity which are also the most threatened ones.
They are determined mainly by three factors.
(i) Degree of endemism.
(ii) Degree of threat to habitat due to its degradation and fragmentation.
(iii) Number of species/species diversity.
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