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 biodiversity?

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodiversity refers to the wide range of living organisms on Earth, including their genetic diversity, species diversity, and ecosystem diversity.

Multiple choice

What is the term used to describe the variety of life forms found within an ecosystem?

  1. Biodiversity

  2. Ecosystem diversity

  3. Species richness

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

Biodiversity refers to the variety of life forms found within an ecosystem, including the number of species, their genetic diversity, and the interactions between them.

Multiple choice

Which of the following factors is NOT a major driver of ecosystem diversity?

  1. Climate

  2. Soil type

  3. Human activities

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

Human activities are not a major driver of ecosystem diversity. They can impact ecosystems and reduce biodiversity, but they are not a natural factor that shapes ecosystem diversity.

Multiple choice

What is the term used to describe the transfer of energy and nutrients through an ecosystem?

  1. Food chain

  2. Food web

  3. Trophic levels

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

A food web is a complex network of interconnected food chains, showing the feeding relationships between different species in an ecosystem.

Multiple choice

Which of the following is NOT a type of biological system commonly studied in Systems Biology?

  1. Gene regulatory networks

  2. Metabolic pathways

  3. Protein-protein interaction networks

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

Ecosystems are not typically studied in Systems Biology, which focuses on molecular interactions and behaviors within biological systems at a smaller scale.

Multiple choice

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

  1. Climate regulation

  2. Water purification

  3. Food production

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

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

Multiple choice

What is the concept of 'ecosystem services' related to?

  1. The benefits humans derive from ecosystems

  2. The economic value of ecosystems

  3. The role of ecosystems in climate regulation

  4. The impact of human activities on ecosystems
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

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

Multiple choice

What is the significance of ecosystem diversity for human well-being?

  1. It provides aesthetic value

  2. It ensures a stable climate

  3. It supports food production

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

Ecosystem diversity contributes to human well-being by providing aesthetic value, ensuring a stable climate, supporting food production, and offering various other benefits.

Multiple choice

Which ecosystem is characterized by a high level of biodiversity and provides essential services such as water purification and carbon sequestration?

  1. Desert

  2. Forest

  3. Grassland

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

Forests are known for their high biodiversity and provide crucial services such as water purification, carbon sequestration, and habitat for numerous species.

Multiple choice

Which ecosystem is characterized by a high level of productivity and provides a significant portion of the world's food supply?

  1. Desert

  2. Forest

  3. Grassland

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

Grasslands are highly productive ecosystems that provide a substantial portion of the world's food supply through grazing and agriculture.

Multiple choice

Which of the following is NOT a commonly used indicator for assessing the health of forest ecosystems?

  1. Tree species diversity

  2. Carbon storage capacity

  3. Water quality in streams

  4. Soil nutrient levels
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Water quality in streams is not typically used as an indicator for assessing the health of forest ecosystems as it is more relevant to aquatic ecosystems.

Multiple choice

What is the term used to describe the wide range of microorganisms found in an environment?

  1. Microbial diversity

  2. Microbial richness

  3. Microbial abundance

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

Microbial diversity encompasses the variety of microorganisms, including bacteria, archaea, fungi, protists, and viruses, found in a particular environment.

Multiple choice

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

  1. Ecosystem Diversity

  2. Biodiversity

  3. Species Richness

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

Ecosystem diversity refers to the variety of ecosystems found on Earth, each with its own unique set of abiotic and biotic components.

Multiple choice

Which of the following is NOT a key component of ecosystem diversity?

  1. Climate

  2. Soil

  3. Water

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

Human activities are not a natural component of ecosystem diversity, although they can have a significant impact on ecosystems.

Multiple choice

What is the difference between biodiversity and ecosystem services?

  1. Biodiversity is the variety of life on Earth, while ecosystem services are the benefits that humans derive from ecosystems.

  2. Biodiversity is the variety of species on Earth, while ecosystem services are the benefits that ecosystems provide to humans.

  3. Biodiversity is the variety of genes on Earth, while ecosystem services are the benefits that humans derive from genes.

  4. Biodiversity is the variety of ecosystems on Earth, while ecosystem services are the benefits that humans derive from ecosystems.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Biodiversity is the variety of life on Earth. Ecosystem services are the benefits that humans derive from ecosystems.