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

What is the core idea behind the concept of 'ecological footprint'?

  1. The amount of land and resources required to sustain a population.

  2. The impact of human activities on biodiversity.

  3. The rate of deforestation and habitat loss.

  4. The concentration of greenhouse gases in the atmosphere.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The ecological footprint measures the human demand on the Earth's resources and ecosystems.

Multiple choice

What is Traditional Ecological Knowledge (TEK)?

  1. A body of knowledge and beliefs about the natural world and how to live in harmony with it, developed by indigenous peoples over generations

  2. A system of scientific knowledge about the environment

  3. A set of beliefs and practices that are not based on scientific evidence

  4. A type of knowledge that is only relevant to indigenous peoples
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

TEK is a body of knowledge and beliefs about the natural world and how to live in harmony with it, developed by indigenous peoples over generations. It is based on the close relationship between indigenous peoples and their environment, and it includes knowledge about plants, animals, weather, and other natural phenomena.

Multiple choice

Which of the following is not an example of aesthetic value in biodiversity?

  1. Scenic beauty of landscapes

  2. Cultural and spiritual significance of species

  3. Economic value of biodiversity

  4. Recreational value of natural areas
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Economic value of biodiversity refers to the monetary benefits derived from the use of biodiversity, such as the value of timber, food, and medicine. While economic value is important, it is not considered an aesthetic value.

Multiple choice

How does the resilience of tundra ecosystems contribute to the global food supply?

  1. It supports traditional food systems

  2. It provides grazing lands for livestock

  3. It contributes to the production of agricultural crops

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

The resilience of tundra ecosystems contributes to the global food supply in several ways. It supports traditional food systems of indigenous communities, providing sources of meat, fish, and berries. Tundra ecosystems also provide grazing lands for livestock, such as reindeer and caribou, which are important sources of food and income for many communities. Additionally, the resilience of tundra ecosystems helps maintain the productivity of agricultural crops in adjacent regions by regulating water flow and nutrient cycling.

Multiple choice

What is the term for the unique biodiversity found on islands, often including endemic species?

  1. Island Endemism

  2. Island Speciation

  3. Island Extinction

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

Island endemism refers to the unique biodiversity found on islands, often including species that are not found anywhere else in the world.

Multiple choice

What is the term used to describe the unique ecosystem that exists between mangrove forests and coral reefs?

  1. Mangrove-coral reef complex

  2. Mangrove-coral reef ecosystem

  3. Mangrove-coral reef association

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

The term mangrove-coral reef complex, mangrove-coral reef ecosystem, and mangrove-coral reef association are all used to describe the unique ecosystem that exists between mangrove forests and coral reefs.

Multiple choice

What is the primary ecosystem service provided by grasslands?

  1. Food production

  2. Water filtration

  3. Carbon sequestration

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

Grasslands are home to a wide variety of plant and animal species, making them important for biodiversity conservation.

Multiple choice

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

  1. Pollination

  2. Water purification

  3. Climate regulation

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

Pesticide production is not a type of ecosystem service. Ecosystem services are the benefits that humans derive from ecosystems.

Multiple choice

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

  1. Biodiversity

  2. Ecological balance

  3. Food web

  4. Ecosystem services
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Ecological balance refers to the intricate web of interactions and dependencies among species within an ecosystem, maintaining its stability and functioning.

Multiple choice

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

  1. Biodiversity

  2. Ecological balance

  3. Food web

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

Ecosystem services refer to the various benefits that humans obtain from ecosystems, such as clean air, water, food, and regulation of climate.

Multiple choice

Which of the following is NOT a type of biodiversity?

  1. Species diversity

  2. Genetic diversity

  3. Ecosystem diversity

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

Cultural diversity refers to the variety of cultures and traditions among human societies, while species diversity, genetic diversity, and ecosystem diversity are all types of biodiversity related to the natural world.

Multiple choice

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

  1. Biodiversity

  2. Ecosystem services

  3. Food web

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

Ecological balance refers to the interconnectedness and interdependence of species within an ecosystem, where each species plays a role in maintaining the stability and functioning of the ecosystem.

Multiple choice

Which of the following is NOT an example of an ecosystem service?

  1. Pollination

  2. Water purification

  3. Climate regulation

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

Economic benefits are not considered an ecosystem service, as they are not directly derived from the functioning of ecosystems.

Multiple choice

How does the resilience of savanna environments compare to that of other ecosystems?

  1. Savanna environments are more resilient than other ecosystems.

  2. Savanna environments are less resilient than other ecosystems.

  3. The resilience of savanna environments is similar to that of other ecosystems.

  4. The resilience of savanna environments varies depending on the specific ecosystem.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The resilience of savanna environments varies depending on the specific ecosystem, and it can be compared to that of other ecosystems based on factors such as biodiversity, ecosystem function, and the ability to adapt to environmental change.

Multiple choice

How can the resilience of savanna environments be measured?

  1. By measuring the levels of biodiversity.

  2. By measuring the levels of soil fertility.

  3. By measuring the levels of water availability.

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

The resilience of savanna environments can be measured by measuring the levels of biodiversity, soil fertility, and water availability, as these factors all contribute to the resilience of these ecosystems.