Biodiversity: Definition, Levels, Threats, and Conservation

Question 1

Which level of biodiversity focuses on the variations within a single species?

Accepted Answer

Genetic diversity

Answer

Species diversity

Answer

Ecosystem diversity

Answer

Landscape diversity

Question 2

Which of the following is not a fundamental characteristic of biodiversity?

Accepted Answer

Man-made environments

Answer

Variety and abundance of living organisms

Answer

Genetic diversity within species

Answer

Composition and structure of ecosystems

Question 3

At which level of biodiversity does the focus lie on the number and variety of different species within a specific geographic area?

Accepted Answer

Species diversity

Answer

Genetic diversity

Answer

Ecosystem diversity

Answer

Landscape diversity

Question 4

Which of the following is NOT a level of biodiversity?

Accepted Answer

Climate change

Answer

Genetic diversity

Answer

Species diversity

Answer

Ecosystem diversity

Question 5

The Convention on Biological Diversity defines biodiversity as:

Accepted Answer

The variability among living organisms and the ecological complexes they form.

Answer

The number of different species in an ecosystem.

Answer

The genetic diversity within a species.

Answer

The balance between predator and prey populations.

Question 6

The concept of an 'ecological footprint' measures:

Accepted Answer

The amount of land and resources required to support a population or activity.

Answer

The number of species in an ecosystem.

Answer

The rate of biodiversity loss.

Answer

The pollution produced by a population or activity.

Question 7

The concept of 'carrying capacity' refers to:

Accepted Answer

The maximum population size that an environment can support indefinitely.

Answer

The rate at which a species' population increases.

Answer

The number of different species in an ecosystem.

Answer

The level of biodiversity in an area.

Question 8

Which of the following is an example of a keystone species?

Accepted Answer

Sea otters

Answer

Lions

Answer

Honeybees

Answer

Cheetahs

Question 9

Which of the following is NOT considered a component of biodiversity?

Accepted Answer

Cultural variety

Answer

Species variety

Answer

Ecosystem diversity

Answer

Genetic variation

Question 10

The concept of 'ecosystem services' refers to:

Accepted Answer

Benefits humans receive from ecosystems

Answer

Influence of keystone species on ecosystem balance

Answer

Effects of human activities on biodiversity

Answer

Diversity of species composition within a habitat

Question 11

Which is regarded as a primary threat to biodiversity in the United Kingdom?

Accepted Answer

Habitat loss and fragmentation

Answer

Invasive species

Answer

Pollution

Answer

Overexploitation of resources

Question 12

The 'IUCN Red List' is used to:

Accepted Answer

Classify species based on their extinction risk

Answer

Identify important biodiversity regions

Answer

Monitor changes in species populations

Answer

Evaluate the effectiveness of conservation efforts

Question 13

Which of the following is NOT a tenet of sustainable development?

Accepted Answer

Using renewable resources more quickly than they can be naturally replenished

Answer

Meeting current needs without jeopardizing future generations' ability to meet their own

Answer

Protecting the environment while fostering economic development

Answer

Distributing resources equitably across and within generations

Question 14

Agroforestry is a land management practice that:

Accepted Answer

Combines trees or shrubs with agricultural crops

Answer

Focuses exclusively on tree planting

Answer

Entails clearing forests for agriculture

Answer

Promotes species variety

Question 15

Which of the following is a characteristic of endemic species?

Accepted Answer

Restricted to a specific geographic location

Answer

Introduced from another region

Answer

Widely distributed

Answer

Highly endangered

Question 16

Which of the following is NOT considered a major threat to biodiversity?

Accepted Answer

Sustainable agriculture

Answer

Habitat destruction

Answer

Climate change

Answer

Pollution

Question 17

Species richness refers to:

Accepted Answer

The total number of different species found in a particular area

Answer

The dominance of certain species over others in an ecosystem

Answer

The evenness of species distribution throughout a habitat

Answer

The genetic diversity within a single species

Question 18

Ecosystem services, such as pollination and water purification, illustrate the:

Accepted Answer

Direct benefits that humans derive from biodiversity

Answer

Intrinsic value of biodiversity for its own sake

Answer

Threats that biodiversity poses to human societies

Answer

Indicators of the overall health and functioning of ecosystems

Question 19

The primary goal of the United Nations Convention on Biological Diversity (CBD) is to:

Accepted Answer

Promote conservation and sustainable use of biodiversity worldwide

Answer

Establish a global network of protected areas

Answer

Eradicate invasive species from all ecosystems

Answer

Monitor changes in biodiversity and provide early warnings

Question 20

The concept of biodiversity hotspots refers to:

Accepted Answer

Regions with exceptionally high levels of unique and threatened species

Answer

Areas that are particularly vulnerable to habitat loss and fragmentation

Answer

Ecosystems that provide essential services to local communities

Answer

Habitats with the greatest overall species richness

Question 21

Which of the following is NOT an indicator of biodiversity loss?

Accepted Answer

Increased agricultural productivity

Answer

Species extinction

Answer

Habitat fragmentation

Answer

Invasive species proliferation

Question 22

What is the term for the variety of species found in a particular area or ecosystem?

Accepted Answer

Species richness

Answer

Ecosystem diversity

Answer

Functional diversity

Answer

Genetic diversity

Question 23

Which human activity is considered the primary threat to global biodiversity?

Accepted Answer

Habitat destruction

Answer

Pollution

Answer

Climate change

Answer

Overexploitation

Question 24

What is the Convention on Biological Diversity (CBD)?

Accepted Answer

An international agreement to conserve and sustainably use biodiversity

Answer

A conservation organization focused on species protection

Answer

A research initiative studying biodiversity loss

Question 25

What is the term for the loss of genetic variation within a population?

Accepted Answer

Genetic erosion

Answer

Speciation

Answer

Mutation

Answer

Genetic drift

Question 26

Which of the following is a type of ecosystem that supports a high level of biodiversity?

Accepted Answer

Rainforest

Answer

Tundra

Answer

Desert

Answer

Grassland

Question 27

What is the role of the Millennium Ecosystem Assessment (MA)?

Accepted Answer

To assess the condition and trends of global ecosystems and their services to humans

Answer

To develop conservation policies and strategies

Answer

To fund research on biodiversity