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

How can functional diversity be incorporated into school curricula?

  1. As a stand-alone unit in biology or ecology classes

  2. As a cross-cutting theme throughout science and environmental education

  3. Through extracurricular activities and clubs

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

Functional diversity can be incorporated into school curricula in various ways, depending on the specific context and educational goals.

Multiple choice

What is the relationship between functional diversity and ecosystem resilience?

  1. Functional diversity increases ecosystem resilience

  2. Functional diversity decreases ecosystem resilience

  3. There is no relationship between functional diversity and ecosystem resilience

  4. The relationship between functional diversity and ecosystem resilience is complex and context-dependent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The relationship between functional diversity and ecosystem resilience is complex and depends on various factors, such as the specific ecosystem type, the nature of the disturbance, and the functional traits of the species present.

Multiple choice

Which of the following is a common sampling technique used in community ecology?

  1. Quadrat sampling

  2. Transect sampling

  3. Random sampling

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

Quadrat sampling, transect sampling, and random sampling are all common sampling techniques used in community ecology. Quadrat sampling involves placing a square or rectangular frame on the ground and recording the species and abundance of organisms within the frame. Transect sampling involves walking along a line and recording the species and abundance of organisms at regular intervals. Random sampling involves selecting a set of sampling locations randomly from the entire study area.

Multiple choice

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

  1. Soil formation

  2. Nutrient cycling

  3. Pollination

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

Pollination is a provisioning service, not a supporting service.

Multiple choice

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

  1. Nutrient cycling

  2. Pollination

  3. Water purification

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

Pollination is a regulating service, not a supporting service.

Multiple choice

What is functional diversity?

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

  2. The number of different species in an ecosystem.

  3. The genetic diversity within a population.

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

Functional diversity refers to the variety of traits and functions performed by organisms in an ecosystem. It is a measure of the diversity of ecological roles played by different species.

Multiple choice

How can functional diversity be measured?

  1. By measuring the abundance of different species.

  2. By measuring the diversity of functional traits.

  3. By measuring the ecosystem processes that are performed by different species.

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

Functional diversity can be measured by measuring the abundance of different species, the diversity of functional traits, and the ecosystem processes that are performed by different species.

Multiple choice

What is the term used to describe the collective genetic material of a microbial community?

  1. Metagenome

  2. Genome

  3. Transcriptome

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

Metagenome refers to the entire collection of genetic material obtained from a microbial community, encompassing the DNA of all organisms present.

Multiple choice

What term describes the interconnectedness and interdependence of organisms within an ecosystem?

  1. Food chain

  2. Habitat

  3. Web of life

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

The 'web of life' is a metaphor used to represent the complex network of interactions and dependencies between organisms in an ecosystem.

Multiple choice

Which of the following is NOT a component of an ecosystem?

  1. Producers

  2. Consumers

  3. Decomposers

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

The atmosphere is not a component of an ecosystem, but rather the surrounding environment in which an ecosystem exists.

Multiple choice

What is the term used to describe the process by which energy flows through an ecosystem?

  1. Energy cycle

  2. Food chain

  3. Trophic levels

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

Energy flow refers to the transfer of energy from one organism to another through the food chain.

Multiple choice

What is the term used to describe the process by which organisms interact with each other and their environment?

  1. Ecology

  2. Ecosystem

  3. Habitat

  4. Biosphere
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

The concept of 'habitat connectivity' refers to:

  1. The physical connection between different habitats

  2. The genetic diversity within a population

  3. The ability of a species to adapt to changing environments

  4. The rate at which a population grows
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Habitat connectivity refers to the physical connections between different habitats, allowing for the movement and dispersal of species, genetic exchange, and maintaining ecological processes.

Multiple choice

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

  1. Pollination

  2. Water cycle

  3. Climate regulation

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

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

Multiple choice

What is the term used to describe the variety of life on Earth?

  1. Biodiversity

  2. Ecosystem diversity

  3. Species richness

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

Biodiversity is the term used to describe the variety of life on Earth, including all living organisms and the ecosystems they inhabit.