Environmental Studies ยท Biology

Ecology and Biodiversity

1,737 Questions

Ecology and biodiversity are vital topics in environmental studies, covering ecosystem structures, species diversity, and environmental impacts. These concepts are frequently tested in competitive examinations for civil services and state selections. The questions cover carrying capacity, ecological succession, and conservation fundamentals.

Species richness measurementTypes of ecological diversityBiome distribution factorsCarrying capacity conceptEcosystem servicesEnvironmental Impact Assessment

Ecology and Biodiversity Questions

Multiple choice

What is the relationship between functional diversity and biodiversity?

  1. Functional diversity is a component of biodiversity.

  2. Biodiversity is a component of functional diversity.

  3. Functional diversity and biodiversity are the same thing.

  4. Functional diversity and biodiversity are unrelated.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Functional diversity is a component of biodiversity because it is a measure of the variety of roles and functions that different species play in an ecosystem.

Multiple choice

What are supporting services in ecosystems?

  1. Services that provide the foundation for all other ecosystem services.

  2. Services that directly benefit humans, such as food and water.

  3. Services that regulate the Earth's climate.

  4. Services that support biodiversity.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Supporting services are the underlying processes that maintain the structure and function of ecosystems, such as nutrient cycling, soil formation, and water cycling.

Multiple choice

What is connectivity?

  1. The degree to which populations are connected by dispersal

  2. The degree to which habitats are connected by corridors

  3. The degree to which species are connected by food webs

  4. The degree to which ecosystems are connected by nutrient cycles
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Connectivity is the degree to which populations are connected by dispersal, which can help to maintain genetic diversity and reduce the risk of extinction.

Multiple choice

Which of the following is NOT a type of biodiversity?

  1. Species diversity

  2. Genetic diversity

  3. Ecosystem diversity

  4. Cultural diversity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cultural diversity is not a type of biodiversity, as it refers to the variety of human cultures and traditions.

Multiple choice

Which of the following is NOT a key factor that influences the distribution of biodiversity?

  1. Climate

  2. Soil type

  3. Human activities

  4. Water availability
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

While human activities can have a significant impact on biodiversity, they are not a key factor that influences the natural distribution of biodiversity.

Multiple choice

What is the maximum population size of a species that can be sustained indefinitely in a given environment?

  1. Carrying capacity

  2. Population density

  3. Ecological footprint

  4. Environmental impact
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carrying capacity is the maximum population size of a species that can be sustained indefinitely in a given environment without causing environmental degradation.

Multiple choice

What is the relationship between carrying capacity and biodiversity?

  1. Carrying capacity is positively correlated with biodiversity

  2. Carrying capacity is negatively correlated with biodiversity

  3. Carrying capacity is not correlated with biodiversity

  4. The relationship between carrying capacity and biodiversity is complex and depends on a variety of factors
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The relationship between carrying capacity and biodiversity is complex and depends on a variety of factors, including the type of ecosystem, the availability of resources, and the interactions between species.

Multiple choice

What is the concept of 'carrying capacity' in environmental stewardship?

  1. The maximum population size that an environment can sustain

  2. The minimum population size required for a species to survive

  3. The rate at which a population grows or declines

  4. The number of individuals in a population at a given time
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carrying capacity refers to the maximum population size that an environment can sustain without degrading its resources or causing irreversible damage.

Multiple choice

Which of the following is NOT a regulating service provided by ecosystems?

  1. Climate regulation

  2. Water purification

  3. Pollination

  4. Food production
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Food production is a provisioning service, not a regulating service.

Multiple choice

How do ecosystems regulate pollination?

  1. By providing habitat for pollinators

  2. By producing nectar and pollen for pollinators

  3. By dispersing pollen grains

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Ecosystems regulate pollination by providing habitat for pollinators, producing nectar and pollen for pollinators, and dispersing pollen grains.

Multiple choice

What is functional diversity?

  1. The variety of traits and functions performed by species in an ecosystem.

  2. The number of species in an ecosystem.

  3. The genetic diversity within a species.

  4. The physical structure of an ecosystem.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Functional diversity refers to the range of traits and functions that different species perform within an ecosystem. It encompasses the variety of ecological roles played by species, such as their feeding habits, habitat preferences, and interactions with other organisms.

Multiple choice

Which of the following is an example of functional diversity in an ecosystem?

  1. A forest with a variety of tree species, each with different leaf shapes and sizes.

  2. A grassland with a variety of grass species, each with different grazing preferences.

  3. A coral reef with a variety of coral species, each with different growth forms and feeding strategies.

  4. All of the above.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All of the examples provided are instances of functional diversity in different ecosystems. The forest with a variety of tree species exhibits functional diversity in terms of leaf traits and canopy structure. The grassland with a variety of grass species shows functional diversity in grazing preferences and nutrient acquisition strategies. The coral reef with a variety of coral species displays functional diversity in growth forms and feeding strategies.

Multiple choice

What is the term used to describe the process by which invasive species alter the functional composition of an ecosystem?

  1. Functional homogenization.

  2. Functional divergence.

  3. Functional convergence.

  4. Functional redundancy.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Functional homogenization refers to the process by which invasive species alter the functional composition of an ecosystem, making it more similar to other ecosystems that have been invaded by the same species. This can occur when invasive species replace native species with similar functional traits, leading to a reduction in functional diversity.

Multiple choice

What is functional diversity?

  1. The variety of functions performed by organisms in an ecosystem

  2. The number of different species in an ecosystem

  3. The genetic diversity within a species

  4. The physical diversity of an ecosystem
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Functional diversity refers to the variety of functions performed by organisms in an ecosystem. This includes the different ways that organisms interact with their environment, such as their feeding habits, reproductive strategies, and dispersal mechanisms.

Multiple choice

Which of the following is NOT a supporting service provided by ecosystems?

  1. Nutrient cycling

  2. Soil formation

  3. Pollination

  4. Climate regulation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Climate regulation is a regulating service provided by ecosystems, not a supporting service.