12th Grade > Biology
BIODIVERSITY AND CONSERVATION MCQs
Total Questions : 54
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Answer: Option B. -> India
:
B
Habitat fragmentation or degradation of habitatis the process by whichhabitatloss results in the division of large, continuoushabitatsinto smaller, more isolated remnants. This has lead to the extinction of the cheetah in India.
:
B
Habitat fragmentation or degradation of habitatis the process by whichhabitatloss results in the division of large, continuoushabitatsinto smaller, more isolated remnants. This has lead to the extinction of the cheetah in India.
Answer: Option C. -> Cryopreservation
:
C
Ex situ conservation involves taking organisms out of their natural habitat and protecting them from going extinct. Cryopreservation is a method used to preserve germlines and seeds. They can be unfrozen and used when needed. Wildlife Sanctuaries, Biosphere Reserves and National Parks are examples of in situ conservation.
:
C
Ex situ conservation involves taking organisms out of their natural habitat and protecting them from going extinct. Cryopreservation is a method used to preserve germlines and seeds. They can be unfrozen and used when needed. Wildlife Sanctuaries, Biosphere Reserves and National Parks are examples of in situ conservation.
Answer: Option A. -> True
:
A
Species diversity refers to the biodiversity that exists between different species of organisms in the same ecosystem as well as in different ecosystems.
:
A
Species diversity refers to the biodiversity that exists between different species of organisms in the same ecosystem as well as in different ecosystems.
Answer: Option A. -> Habitat destruction
:
A
Habitat loss is a major cause for the extinction of species. Every species is adapted to survive in its own habitat. Once the habitat is destroyed, the species can no longer survive in an alien condition. This gradually results in extinction.
:
A
Habitat loss is a major cause for the extinction of species. Every species is adapted to survive in its own habitat. Once the habitat is destroyed, the species can no longer survive in an alien condition. This gradually results in extinction.
Answer: Option B. -> False
:
B
Biodiversity Hotspots are those regions that are specially protected by law. These regions have a high degree of species richness and diversity. Most species that are native to these Hotspots have a high degree of endemism which means that they cannot be found elsewhere on earth. Hence, to specially demarcate such important biodiversity reserves and to help protect their species, 34 Hotspots have been identified so far.
:
B
Biodiversity Hotspots are those regions that are specially protected by law. These regions have a high degree of species richness and diversity. Most species that are native to these Hotspots have a high degree of endemism which means that they cannot be found elsewhere on earth. Hence, to specially demarcate such important biodiversity reserves and to help protect their species, 34 Hotspots have been identified so far.
Answer: Option A. -> Japanese Kudzu vine
:
A
Japanese Kudzu vine is an example of alien species invasion. The vine was introduced in the southeast United States, where it went on to grow unchecked. It soon covered all plants and blocked all sunlight available for the plants. This happened because the natural predator for the vine was absent in the new ecosystem and therefore, there was no means to keep a control on the growth of these vines.
:
A
Japanese Kudzu vine is an example of alien species invasion. The vine was introduced in the southeast United States, where it went on to grow unchecked. It soon covered all plants and blocked all sunlight available for the plants. This happened because the natural predator for the vine was absent in the new ecosystem and therefore, there was no means to keep a control on the growth of these vines.
Answer: Option B. -> Biomes of Africa
:
B
Biomes are a collection of ecosystems that have a similar topography, climatic conditions, temperature, precipitation and similar types of species. In the image, we can observe large masses of land that come under the forest biome (tropical rainforest), the grasslands and even deserts. Each of these biomes can house thousands of individual ecosystems. Ecosystem biodiversity on the other hand, would denote the sum total of the biodiversity that exists within a specific ecosystem and not in a biome. The aggregation of biodiversity in various similar ecosystems makes up a biome.
:
B
Biomes are a collection of ecosystems that have a similar topography, climatic conditions, temperature, precipitation and similar types of species. In the image, we can observe large masses of land that come under the forest biome (tropical rainforest), the grasslands and even deserts. Each of these biomes can house thousands of individual ecosystems. Ecosystem biodiversity on the other hand, would denote the sum total of the biodiversity that exists within a specific ecosystem and not in a biome. The aggregation of biodiversity in various similar ecosystems makes up a biome.
Answer: Option B. -> 1 - s, 2 - p, 3 - q, 4 - r
:
B
The equation: log S = log C + Z log A represents the relationship between species richness and area. This is a linear equation in the form ‘y = c+mx’. Comparing these two equations, y = log S; x = log A; the constant c = log C and Z is the slope m.
:
B
The equation: log S = log C + Z log A represents the relationship between species richness and area. This is a linear equation in the form ‘y = c+mx’. Comparing these two equations, y = log S; x = log A; the constant c = log C and Z is the slope m.
Answer: Option A. -> True
:
A
The ethical reasoning behind biodiversity conservation aims mainly to conserve other organisms that co-inhabit earth because each organism is important in its own right even if we cannot derive direct economic benefits from them. The ethical reasoning is responsible for conserving biodiversity and maintaining our planet in good order so that the future generations of humans and other organisms can continue to co-exist in a sustainable balance.
:
A
The ethical reasoning behind biodiversity conservation aims mainly to conserve other organisms that co-inhabit earth because each organism is important in its own right even if we cannot derive direct economic benefits from them. The ethical reasoning is responsible for conserving biodiversity and maintaining our planet in good order so that the future generations of humans and other organisms can continue to co-exist in a sustainable balance.
Answer: Option A. -> Conservation of wildlife
:
A
National Parks and Wildlife Sanctuaries are established to mark a safe zone for wildlife. These areas are closely protected by the forest department officials and help in the conservation of wildlife.
:
A
National Parks and Wildlife Sanctuaries are established to mark a safe zone for wildlife. These areas are closely protected by the forest department officials and help in the conservation of wildlife.
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