Environmental Studies ยท Biology
Biodiversity and Conservation
2,266 Questions
Biodiversity and conservation questions address threats to ecosystems, climate change impacts, and habitat loss. These topics are essential for environmental science sections in major competitive exams. Practicing these questions clarifies concepts regarding species extinction and ecological management.
Habitat loss consequencesClimate change impactsEcosystem degradation causesDesert biodiversity threatsForest diversity threatsResource extraction effects
Biodiversity and Conservation Questions
What can be done to reduce the negative effects of pollution on functional diversity?
-
Reduce the use of pesticides and other chemicals.
-
Clean up oil spills and other pollution events.
-
Reduce the burning of fossil fuels.
-
All of the above.
D
Correct answer
Explanation
All of the above are ways to reduce the negative effects of pollution on functional diversity. Reducing the use of pesticides and other chemicals can help to protect insects and other organisms that are important for ecosystem function. Cleaning up oil spills and other pollution events can help to restore the physical and chemical environment of an ecosystem and reduce the exposure of organisms to pollutants. Reducing the burning of fossil fuels can help to reduce the release of pollutants into the air and water, which can benefit both human health and ecosystem health.
What are some of the potential benefits of reducing the negative effects of pollution on functional diversity?
-
Increased ecosystem productivity.
-
Increased ecosystem resilience.
-
Increased human health.
-
All of the above.
D
Correct answer
Explanation
All of the above are potential benefits of reducing the negative effects of pollution on functional diversity. Increased ecosystem productivity can lead to a more sustainable food supply. Increased ecosystem resilience can help to protect ecosystems from the effects of climate change and other disturbances. Increased human health can lead to a longer and healthier life for people around the world.
Which of the following is not a factor that can affect functional diversity?
-
Climate change.
-
Land use change.
-
Pollution.
-
Invasive species.
A
Correct answer
Explanation
Climate change is a global phenomenon that is affecting the Earth's climate system. It is not a factor that can affect functional diversity, as it is not a local or regional phenomenon.
Which of the following is not a consequence of reduced functional diversity?
-
Decreased ecosystem productivity.
-
Increased ecosystem resilience.
-
Increased susceptibility to invasive species.
-
Decreased human health.
B
Correct answer
Explanation
Reduced functional diversity can lead to decreased ecosystem productivity, increased susceptibility to invasive species, and decreased human health. However, it can also lead to increased ecosystem resilience, as a more diverse ecosystem is better able to withstand disturbances.
Which human activity is a major contributor to biodiversity loss?
-
Sustainable agriculture practices.
-
Habitat destruction for development.
-
Renewable energy production.
-
Conservation efforts in protected areas.
B
Correct answer
Explanation
Habitat destruction, often driven by urbanization, agriculture, and infrastructure development, is a leading cause of biodiversity loss, as it eliminates the natural habitats of various species.
What is the term used to describe the loss of biodiversity due to human activities?
-
Habitat destruction
-
Pollution
-
Climate change
-
Invasive species
A
Correct answer
Explanation
Habitat destruction, such as deforestation and urbanization, is a major cause of biodiversity loss, as it reduces the available space and resources for species to survive.
-
The changes that occur at the boundary between two different habitats
-
The changes that occur in the center of a habitat
-
The changes that occur in the interior of a habitat
-
The changes that occur outside of a habitat
A
Correct answer
Explanation
Edge effects are the changes that occur at the boundary between two different habitats. These changes can be caused by differences in the physical environment, such as temperature, humidity, and light levels, or by differences in the biological environment, such as the presence of different species.
What are some of the negative effects of habitat fragmentation?
-
Loss of biodiversity
-
Increased risk of extinction
-
Changes in ecosystem function
-
All of the above
D
Correct answer
Explanation
Habitat fragmentation can have a number of negative effects, including loss of biodiversity, increased risk of extinction, and changes in ecosystem function. Loss of biodiversity occurs when species are unable to survive in fragmented habitats. Increased risk of extinction occurs when populations of species become too small and isolated to be able to survive. Changes in ecosystem function occur when the structure and composition of a habitat is changed, which can affect the way that the ecosystem functions.
What are some of the positive effects of habitat fragmentation?
-
Increased species diversity
-
Increased edge habitat
-
Increased opportunities for dispersal
-
None of the above
D
Correct answer
Explanation
Habitat fragmentation generally has negative effects on biodiversity and ecosystem function. There are no known positive effects of habitat fragmentation.
What is the role of edge effects in habitat fragmentation?
-
Edge effects are the changes that occur at the boundary between two different habitats
-
Edge effects are the changes that occur in the center of a habitat
-
Edge effects are the changes that occur in the interior of a habitat
-
Edge effects are the changes that occur outside of a habitat
A
Correct answer
Explanation
Edge effects are the changes that occur at the boundary between two different habitats. These changes can be caused by differences in the physical environment, such as temperature, humidity, and light levels, or by differences in the biological environment, such as the presence of different species.
How do edge effects affect species?
-
Edge effects can increase the risk of predation
-
Edge effects can increase the risk of parasitism
-
Edge effects can increase the risk of disease
-
All of the above
D
Correct answer
Explanation
Edge effects can increase the risk of predation, parasitism, and disease for species. This is because edge habitats are often more exposed to predators, parasites, and pathogens than interior habitats.
How do edge effects affect ecosystem function?
-
Edge effects can change the composition of plant and animal communities
-
Edge effects can change the rate of nutrient cycling
-
Edge effects can change the rate of decomposition
-
All of the above
D
Correct answer
Explanation
Edge effects can change the composition of plant and animal communities, the rate of nutrient cycling, and the rate of decomposition. These changes can have a negative impact on ecosystem function.
Which of the following is NOT a type of conservation?
-
In-situ Conservation
-
Ex-situ Conservation
-
Sustainable Development
-
Habitat Destruction
D
Correct answer
Explanation
Habitat Destruction is not a type of conservation, but rather a threat to biodiversity.
What is the term for the loss of biodiversity?
-
Extinction
-
Habitat Destruction
-
Climate Change
-
Pollution
A
Correct answer
Explanation
Extinction is the loss of biodiversity, while Habitat Destruction, Climate Change, and Pollution are threats to biodiversity.
Which of the following is NOT a cause of biodiversity loss?
-
Habitat Destruction
-
Climate Change
-
Pollution
-
Natural Selection
D
Correct answer
Explanation
Natural Selection is not a cause of biodiversity loss, but rather a process that drives evolution.