Environmental Studies ยท Biology

Ecology and Biodiversity

1,739 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

Which of the following is NOT a common type of environmental model?

  1. Deterministic models

  2. Stochastic models

  3. Agent-based models

  4. Physical models
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Physical models are not typically used in environmental modeling and simulation, as they are often impractical or impossible to construct.

Multiple choice

What are the three main types of environmental models?

  1. Deterministic, stochastic, and agent-based.

  2. Physical, mathematical, and conceptual.

  3. Static, dynamic, and spatial.

  4. Continuous, discrete, and hybrid.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The three main types of environmental models are deterministic, stochastic, and agent-based. Deterministic models assume that the system being modeled is governed by fixed laws and relationships, while stochastic models allow for uncertainty and variability in the system. Agent-based models simulate the behavior of individual agents within the system.

Multiple choice

Which type of ecological model is used to represent the interactions between species in a community?

  1. Population model

  2. Community model

  3. Ecosystem model

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

Community models focus on the interactions and dynamics among different species within an ecological community.

Multiple choice

Which type of ecological model is used to represent the spatial distribution of species or populations?

  1. Population model

  2. Community model

  3. Ecosystem model

  4. Landscape model
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Landscape models focus on the spatial distribution and interactions of species or populations across a heterogeneous landscape.

Multiple choice

Which type of ecological model is used to represent the flow of energy and nutrients through an ecosystem?

  1. Population model

  2. Community model

  3. Ecosystem model

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

Ecosystem models focus on the interactions and dynamics of energy and nutrients within an ecosystem.

Multiple choice

Which type of ecological model is used to represent the dynamics of a single population over time?

  1. Population model

  2. Community model

  3. Ecosystem model

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

Population models focus on the dynamics of a single population, including factors such as birth, death, and migration.

Multiple choice

TEK is often associated with:

  1. Indigenous knowledge systems

  2. Local knowledge systems

  3. Traditional knowledge systems

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

TEK is often associated with indigenous knowledge systems, local knowledge systems, and traditional knowledge systems, which are knowledge systems that have been developed and passed down through generations within specific cultural communities.

Multiple choice

Which of the following is NOT a type of human ecosystem?

  1. Urban

  2. Rural

  3. Suburban

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

Natural ecosystems are not created or modified by humans. They are ecosystems that exist without human intervention.

Multiple choice

Which term refers to the ability of ecosystems to absorb and store carbon dioxide?

  1. Carbon Sink

  2. Carbon Source

  3. Carbon Cycle

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

Carbon Sink refers to ecosystems that absorb and store more carbon dioxide than they release.

Multiple choice

What is the term used to describe the interconnectedness and interdependence of all living organisms and their physical environment?

  1. Biodiversity

  2. Ecosystem Services

  3. Ecological Footprint

  4. Gaia Hypothesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Gaia Hypothesis proposes that the Earth's living organisms and physical environment interact as a complex system that maintains the conditions necessary for life on the planet.

Multiple choice

Which concept refers to the idea that humans are part of nature and have a responsibility to live in harmony with the natural world?

  1. Deep Ecology

  2. Shallow Ecology

  3. Environmentalism

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

Deep Ecology is a philosophical perspective that emphasizes the interconnectedness of all living organisms and the importance of preserving the integrity of natural ecosystems.

Multiple choice

What is the term used to describe the unique ecosystem found at the interface of freshwater and saltwater in wetlands?

  1. Estuary

  2. Delta

  3. Riparian zone

  4. Wetland-upland transition zone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The wetland-upland transition zone is the unique ecosystem found at the interface of freshwater and saltwater in wetlands, where different plant and animal communities interact.

Multiple choice

What is the term used to describe the ability of an ecosystem to maintain its structure and function in the face of disturbances?

  1. Resilience

  2. Stability

  3. Homeostasis

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

Resilience is the ability of an ecosystem to maintain its structure and function in the face of disturbances. It is a key factor in determining the health of an ecosystem.

Multiple choice

Which ecological concept describes the distribution of species along an environmental gradient?

  1. Niche Partitioning

  2. Resource Competition

  3. Habitat Selection

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

Habitat selection refers to the process by which species choose specific habitats that provide suitable conditions for their survival and reproduction.

Multiple choice

Which ecological concept describes the process by which a community of organisms changes over time?

  1. Ecological Succession

  2. Species Turnover

  3. Habitat Fragmentation

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

Ecological succession refers to the gradual and orderly change in the composition of a community over time, leading to the establishment of a stable and self-sustaining ecosystem.