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

How can functional redundancy be measured in an ecosystem?

  1. By calculating the number of species that perform the same ecological function

  2. By measuring the overlap in resource use among species

  3. By assessing the response of ecosystem functions to the loss of species

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

Functional redundancy can be measured in an ecosystem by calculating the number of species that perform the same ecological function, measuring the overlap in resource use among species, and assessing the response of ecosystem functions to the loss of species.

Multiple choice

What is the term used to describe the study of the interactions between organisms and their environment?

  1. Ecology

  2. Population ecology

  3. Community ecology

  4. Ecosystem ecology
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ecology is the study of the interactions between organisms and their environment.

Multiple choice

What is the term used to describe the ability of an ecosystem to maintain its structure and function over time?

  1. Biodiversity

  2. Resilience

  3. Carrying capacity

  4. Sustainability
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Resilience refers to the ability of an ecosystem to withstand disturbances and maintain its structure and function over time. It is a key concept in sustainable development, as it ensures that ecosystems can adapt to changes and continue to provide essential services.

Multiple choice

What is the term used to describe the maximum population size that an environment can support without degrading its resources?

  1. Biodiversity

  2. Resilience

  3. Carrying capacity

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

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

Multiple choice

In a competitive environment, what is the term for the point at which the population size is reduced to a level that is sustainable?

  1. Carrying capacity

  2. Equilibrium

  3. Saturation point

  4. Optimal population size
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Equilibrium is the point at which the population size is reduced to a level that is sustainable.

Multiple choice

What is the term used to describe the benefits that humans derive from ecosystems?

  1. Ecosystem Services

  2. Natural Capital

  3. Environmental Assets

  4. Biotic Resources
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ecosystem services are the direct and indirect benefits that humans derive from ecosystems, such as clean air, water, food, and shelter.

Multiple choice

What is the term used to describe the process by which species that are adapted to edge habitats become more abundant?

  1. Edge specialization

  2. Habitat selection

  3. Ecological succession

  4. Species turnover
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Edge specialization refers to the process by which species that are adapted to edge habitats become more abundant.

Multiple choice

What is the term used to describe the movement of species between edge habitats and interior habitats?

  1. Edge permeability

  2. Habitat connectivity

  3. Ecological succession

  4. Species turnover
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Edge permeability refers to the movement of species between edge habitats and interior habitats.

Multiple choice

What is the term used to describe the arrangement and distribution of species within a community?

  1. Community structure

  2. Species diversity

  3. Trophic levels

  4. Ecological niche
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Community structure refers to the spatial arrangement and distribution of species within a community, including their abundance, diversity, and interactions.

Multiple choice

Which of the following is NOT a measure of species diversity?

  1. Species richness

  2. Species evenness

  3. Species abundance

  4. Species composition
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Species abundance is a measure of the number of individuals of each species in a community, while species richness, evenness, and composition are all measures of species diversity.

Multiple choice

What is the term used to describe the functional role of a species within a community?

  1. Ecological niche

  2. Trophic level

  3. Habitat

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

The ecological niche of a species describes its functional role and position within a community, including its interactions with other species and its use of resources.

Multiple choice

What is the term used to describe the vertical arrangement of species within a community?

  1. Stratification

  2. Zonation

  3. Layering

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

Stratification refers to the vertical arrangement of species within a community, often based on their adaptations to different environmental conditions.

Multiple choice

Which of the following is NOT a factor that can influence community structure?

  1. Climate

  2. Habitat type

  3. Species interactions

  4. Human activities
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Human activities are not a natural factor that influences community structure, while climate, habitat type, and species interactions are all natural factors that can shape community structure.

Multiple choice

Which of the following is NOT a type of ecological succession?

  1. Primary succession

  2. Secondary succession

  3. Cyclic succession

  4. Climax community
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Climax community is not a type of ecological succession, but rather the final stage of succession in which a community reaches a state of equilibrium with its environment.

Multiple choice

What is the term for a long, narrow strip of land that connects two or more fragmented habitats?

  1. Habitat corridor

  2. Habitat linkage

  3. Habitat network

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

A habitat corridor is a long, narrow strip of land that connects two or more fragmented habitats, allowing for the movement of species between them.