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

Ecological Footprint measures the:

  1. Total area of land and water required to support a population

  2. Amount of energy consumed by a household

  3. Volume of waste generated by an industry

  4. Number of species threatened by a development project
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ecological Footprint calculates the total area of land and water required to sustain a population, considering factors such as food production, housing, energy consumption, and waste disposal.

Multiple choice

The concept of 'river continuum' emphasizes the:

  1. Interconnectedness of river ecosystems from headwaters to mouth

  2. Importance of maintaining natural flow regimes in rivers

  3. Role of rivers in transporting nutrients and sediments

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

The river continuum concept encompasses the interconnectedness of river ecosystems, the significance of natural flow regimes, and the role of rivers in nutrient and sediment transport.

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 Diversity

  3. Species Diversity

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

Biodiversity encompasses the variety of life on Earth, including the different species of plants, animals, and microorganisms, as well as the ecosystems in which they live.

Multiple choice

Which of the following is NOT a major type of biodiversity?

  1. Species Diversity

  2. Ecosystem Diversity

  3. Genetic Diversity

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

Cultural Diversity is not a major type of biodiversity. Species Diversity, Ecosystem Diversity, and Genetic Diversity are the major types of biodiversity.

Multiple choice

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

  1. Ecosystem Services

  2. Biodiversity Benefits

  3. Nature's Benefits

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

Ecosystem Services is the term used to describe the benefits that humans derive from biodiversity.

Multiple choice

What is the term used to describe the role that biodiversity plays in supporting human well-being?

  1. Biodiversity and Human Well-being

  2. Biodiversity and Human Health

  3. Biodiversity and Food Security

  4. Biodiversity and Water Security
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodiversity and Human Well-being is the term used to describe the role that biodiversity plays in supporting human well-being.

Multiple choice

Which of the following is a key principle of permaculture?

  1. Diversity

  2. Interconnectedness

  3. Closed loops

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

Permaculture is based on the principles of diversity, interconnectedness, and closed loops. Diversity refers to the variety of plants and animals in a system, interconnectedness refers to the relationships between these organisms, and closed loops refer to the cycling of resources within the system.

Multiple choice

What is the term for a permaculture design that integrates trees, shrubs, and ground covers in a multi-layered system?

  1. Forest gardening

  2. Food forest

  3. Agroforestry

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

Perennial polyculture is a permaculture design that integrates trees, shrubs, and ground covers in a multi-layered system. This system mimics the structure of a natural forest and can provide a variety of benefits, including food, shelter, and habitat for wildlife.

Multiple choice

What is the term for a permaculture design that uses a variety of plants to create a self-sustaining ecosystem?

  1. Food forest

  2. Permaculture garden

  3. Agroforestry

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

A food forest is a permaculture design that uses a variety of plants to create a self-sustaining ecosystem. This system mimics the structure of a natural forest and can provide a variety of benefits, including food, shelter, and habitat for wildlife.

Multiple choice

How can topography influence the distribution of plant and animal species?

  1. Topography can influence the distribution of plant and animal species by creating different habitats with varying temperature, precipitation, and soil conditions.

  2. Topography has no influence on the distribution of plant and animal species.

  3. Topography only influences the distribution of plant and animal species in mountainous areas.

  4. The influence of topography on the distribution of plant and animal species varies depending on the climate.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Topography can influence the distribution of plant and animal species by creating different habitats with varying temperature, precipitation, and soil conditions. Different elevations, slope orientations, and landforms can support different types of vegetation and wildlife.

Multiple choice

What is the relationship between the Earth's obliquity and the Earth's biodiversity?

  1. The Earth's obliquity causes the Earth to have more biodiversity.

  2. The Earth's obliquity causes the Earth to have less biodiversity.

  3. The Earth's obliquity has no effect on the Earth's biodiversity.

  4. The Earth's obliquity causes the Earth to have different types of biodiversity.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The Earth's obliquity has no effect on the Earth's biodiversity because the Earth's biodiversity is determined by the Earth's climate, geography, and history.

Multiple choice

Which of the following is NOT a direct use value of biodiversity?

  1. Food

  2. Medicine

  3. Recreation

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

Carbon sequestration is an indirect use value of biodiversity as it refers to the role of ecosystems in absorbing and storing carbon dioxide from the atmosphere, contributing to climate change mitigation.

Multiple choice

How can keystone species affect ecosystem processes?

  1. They can influence nutrient cycling

  2. They can regulate water flow and quality

  3. They can affect the rate of decomposition

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

Keystone species can influence nutrient cycling, regulate water flow and quality, and affect the rate of decomposition, thereby shaping ecosystem processes.

Multiple choice

What is the term used to describe the disproportionately large impact of keystone species on their ecosystems relative to their abundance?

  1. Keystone effect

  2. Trophic cascade

  3. Ecosystem engineering

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

The term 'keystone effect' is used to describe the disproportionately large impact that keystone species have on their ecosystems relative to their abundance.

Multiple choice

Which concept in the ontology of biological entities refers to the idea that organisms are embedded in and interact with their environment?

  1. Ecology

  2. Reductionism

  3. Mechanism

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

Ecology emphasizes the importance of understanding the interactions between organisms and their environment, including the role of abiotic and biotic factors.