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 component of functional diversity?

  1. Species richness

  2. Species evenness

  3. Functional traits

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

Species richness is a measure of the number of different species in an ecosystem, while functional diversity is a measure of the variety of traits and functions performed by different species in an ecosystem. Functional traits are the characteristics of species that affect their function in an ecosystem, and functional redundancy is the degree to which different species can perform the same function.

Multiple choice

What is the term for the degree to which different species can perform the same function in an ecosystem?

  1. Functional redundancy

  2. Functional complementarity

  3. Functional diversity

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

Functional redundancy is the degree to which different species can perform the same function in an ecosystem. It is a measure of the extent to which the loss of one species can be compensated for by the presence of other species that can perform the same function.

Multiple choice

How can functional diversity be measured?

  1. By measuring the number of different species in an ecosystem

  2. By measuring the abundance of different species in an ecosystem

  3. By measuring the traits of different species in an ecosystem

  4. By measuring the interactions between different species in an ecosystem
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Functional diversity can be measured by measuring the traits of different species in an ecosystem. Functional traits are the characteristics of species that affect their function in an ecosystem.

Multiple choice

How can functional diversity affect the stability of ecosystem processes?

  1. It can increase the number of species that can perform the same function

  2. It can decrease the number of species that can perform the same function

  3. It can have no effect on the number of species that can perform the same function

  4. It can increase the number of species that can perform different functions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Functional diversity can affect the stability of ecosystem processes by increasing the number of species that can perform the same function. This means that if one species is lost, there are other species that can take its place and perform the same function. This helps to ensure that ecosystem processes continue to function even if there are changes in the species composition of the ecosystem.

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, rather than simply the number of species present.

Multiple choice

Which of the following is not a measure of functional diversity?

  1. Functional richness

  2. Functional evenness

  3. Functional divergence

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

Species richness is a measure of the number of different species in an ecosystem, while functional richness, functional evenness, and functional divergence are all measures of functional diversity.

Multiple choice

What is the relationship between functional diversity and ecosystem functioning?

  1. Functional diversity has a positive effect on ecosystem functioning.

  2. Functional diversity has a negative effect on ecosystem functioning.

  3. Functional diversity has no effect on ecosystem functioning.

  4. The relationship between functional diversity and ecosystem functioning is complex and depends on the specific ecosystem.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The relationship between functional diversity and ecosystem functioning is complex and can vary depending on the specific ecosystem and the functions being considered.

Multiple choice

How can functional diversity be measured?

  1. By measuring the traits of individual organisms.

  2. By measuring the functions performed by organisms in an ecosystem.

  3. By combining measures of traits and functions.

  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 traits of individual organisms, the functions performed by organisms in an ecosystem, or by combining measures of traits and functions.

Multiple choice

What are some of the challenges associated with studying functional diversity?

  1. It is difficult to measure the traits and functions of organisms.

  2. It is difficult to determine which traits and functions are important for ecosystem functioning.

  3. It is difficult to compare functional diversity across different ecosystems.

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

Studying functional diversity can be challenging due to the difficulty of measuring traits and functions, determining which traits and functions are important, and comparing functional diversity across different ecosystems.

Multiple choice

What is the difference between functional diversity and biodiversity?

  1. Functional diversity is a subset of biodiversity.

  2. Biodiversity is a subset of functional diversity.

  3. Functional diversity and biodiversity are the same thing.

  4. Functional diversity and biodiversity are unrelated.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Functional diversity is a subset of biodiversity that focuses on the traits and functions of organisms, rather than simply the number of species present.

Multiple choice

Which of the following is not a type of functional diversity?

  1. Functional richness

  2. Functional evenness

  3. Functional divergence

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

Taxonomic diversity refers to the number of different species in an ecosystem, while functional diversity refers to the variety of traits and functions performed by organisms in an ecosystem.

Multiple choice

What is the relationship between functional diversity and ecosystem stability?

  1. Functional diversity increases ecosystem stability.

  2. Functional diversity decreases ecosystem stability.

  3. Functional diversity has no effect on ecosystem stability.

  4. The relationship between functional diversity and ecosystem stability is complex and depends on the specific ecosystem.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The relationship between functional diversity and ecosystem stability is complex and can vary depending on the specific ecosystem and the functions being considered.

Multiple choice

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

  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 a provisioning service, not a regulating service.

Multiple choice

What is the term used to describe the interconnectedness and interdependence of organisms within an ecosystem?

  1. Biodiversity.

  2. Population dynamics.

  3. Food chain.

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

Ecological balance refers to the complex web of interactions and relationships among organisms within an ecosystem, highlighting their interdependence and the delicate equilibrium that maintains ecosystem stability.

Multiple choice

What is the term used to describe the ability of an ecosystem to maintain its balance and productivity?

  1. Sustainability

  2. Resilience

  3. Biodiversity

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

Resilience refers to the ability of an ecosystem to maintain its balance and productivity in the face of disturbances.