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 term for the belief that humans are superior to all other living things?

  1. Anthropocentrism

  2. Biocentrism

  3. Ecocentrism

  4. Environmental stewardship
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A Correct answer
Explanation

Anthropocentrism is the belief that humans are the most important species on Earth and that all other living things exist to serve human needs.

Multiple choice

The term 'biodiversity' refers to:

  1. The variety of life on Earth

  2. The number of species on Earth

  3. The genetic diversity within a species

  4. The distribution of species across the Earth

  5. The rate of extinction of species
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodiversity refers to the variety of life on Earth, including the number of species, the genetic diversity within species, and the distribution of species across the Earth.

Multiple choice

The term 'ecosystem' refers to:

  1. A community of living organisms and their physical environment

  2. A group of organisms of the same species living in the same area

  3. A population of organisms living in the same area

  4. A habitat where a particular species lives

  5. A food chain or food web in a particular environment
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

An ecosystem is a community of living organisms and their physical environment, interacting as a system.

Multiple choice

How can geological data help paleoecologists understand ancient ecosystems?

  1. It can provide information about the type of rock that the ecosystem was located on.

  2. It can provide information about the age of the ecosystem.

  3. It can provide information about the climate and environment of the ecosystem.

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

Geological data can provide information about the type of rock that the ecosystem was located on, the age of the ecosystem, and the climate and environment of the ecosystem.

Multiple choice

What is the term for the psychological state that results from being in a natural environment?

  1. Nature Connectedness

  2. Ecopsychology

  3. Environmentalism

  4. Biophilia
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A Correct answer
Explanation

Nature Connectedness is the term for the psychological state that results from being in a natural environment.

Multiple choice

What is the term used to describe the variety of life on Earth, including the different species of plants, animals, and microorganisms, as well as the ecosystems in which they live?

  1. Biodiversity

  2. Ecology

  3. Ecosystem

  4. Habitat
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A Correct answer
Explanation

Biodiversity encompasses the entire range of life on Earth, from the smallest microorganisms to the largest whales, and the complex interactions between them and their environment.

Multiple choice

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

  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 not typically considered an ecosystem service, as it is a direct result of human activities rather than a natural process.

Multiple choice

What is the term used to describe the maximum population size that can be sustained by a given environment without causing environmental degradation?

  1. Carrying Capacity

  2. Optimum Population

  3. Ecological Footprint

  4. Population Density
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A Correct answer
Explanation

Carrying Capacity refers to the maximum population size that can be supported by an environment without exceeding its resources and causing environmental degradation.

Multiple choice

The term "keystone species" refers to a species that:

  1. Has a disproportionately large impact on its ecosystem relative to its abundance

  2. Is at the top of the food chain

  3. Is a specialist feeder

  4. Is a generalist feeder
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A Correct answer
Explanation

A keystone species is a species that has a disproportionately large impact on its ecosystem relative to its abundance.

Multiple choice

Which UNESCO category recognizes cultural landscapes that have evolved over time due to human interaction with the environment?

  1. World Heritage Site

  2. Biosphere Reserve

  3. Cultural Landscape

  4. Natural Heritage Site
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Cultural Landscapes are recognized by UNESCO as areas where human interaction with the environment has created unique and significant landscapes.

Multiple choice

What is the term used to describe the variety of life on Earth, including the different species of plants, animals, and microorganisms, as well as the ecosystems in which they live?

  1. Biodiversity

  2. Ecosystem

  3. Habitat

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

Biodiversity encompasses the variety of life on Earth, including genetic diversity, species diversity, and ecosystem diversity.

Multiple choice

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

  1. Resilience

  2. Stability

  3. Diversity

  4. All of the above
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A Correct answer
Explanation

Resilience refers to the ability of an ecosystem to recover from disturbances and maintain its structure and function.

Multiple choice

Which of the following is an example of an ecosystem that is resilient to disturbances?

  1. Coral reefs

  2. Rainforests

  3. Grasslands

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

Coral reefs, rainforests, and grasslands are all examples of ecosystems that are resilient to disturbances.

Multiple choice

What is the term for the gradual change in the composition of a community over time?

  1. Ecological Succession

  2. Evolution

  3. Adaptation

  4. Migration
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A Correct answer
Explanation

Ecological succession is the process by which a community of organisms changes over time, as new species enter and others leave.

Multiple choice

Which of the following is NOT a stage in ecological succession?

  1. Pioneer Species

  2. Climax Community

  3. Secondary Succession

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

Secondary succession is a type of ecological succession that occurs after a disturbance, such as a fire or flood, has cleared an area of vegetation.