Biodiversity Quiz

The greatest cause of biodiversity loss, EXCEPT:

• Habitat loss

• Replanting Trees

• Invasive species

• Pollution

Answer explanation

Replanting trees is a conservation effort that helps restore habitats and increase biodiversity, unlike habitat loss, invasive species, and pollution, which are major causes of biodiversity decline.

The greatest cause of Biodiversity loss today is

• Pollution

• Climate Change

• Habitat Loss and Change

• Invasive Species

Answer explanation

Habitat loss and change is the primary driver of biodiversity loss, as it directly reduces the natural environments where species live, leading to declines in populations and extinction.

What does biodiversity mean?

• Only one species in an area.

• All abiotic parts of an ecosystem

• The variety of life and species found on Earth.

• Evolution

Answer explanation

Biodiversity refers to the variety of life and species found on Earth, encompassing all living organisms and their interactions. This definition highlights the importance of different species in maintaining healthy ecosystems.

It is the sum of all genetic information in the genes.

• Genetic Diversity

• Species Diversity

• Ecosystem Diversity

• Index diversity

Answer explanation

Genetic diversity refers to the total sum of genetic information within a population's genes. It is crucial for the adaptability and survival of species, distinguishing it from species and ecosystem diversity.

A mathematical measure of the community's diversity of species.

• Population density

• Patterns of density

• Index of diversity

• Ecosystem Diversity

Answer explanation

The 'Index of diversity' quantifies the variety of species in a community, making it the correct choice. Other options like population density and ecosystem diversity do not specifically measure species diversity.

It minimized the space between others due to different reasons, such as protection from predators.

• Population Distribution

• Uniform Distribution

• Clumped Distribution

• Random Distribution

Answer explanation

Clumped Distribution occurs when individuals are grouped together, often for reasons like protection from predators. This minimizes space between them, making it the correct choice for the given statement.

It is an irregular spacing between an individual of the population

• Population Distribution

• Uniform Distribution

• Clumped Distribution

• Random Distribution

Answer explanation

Random Distribution refers to an irregular spacing of individuals in a population, where the location of one individual does not affect the location of another. This contrasts with uniform or clumped distributions.

It is maximizing the space between any two individuals, also known as even distribution.

• Uniform Distribution

• Clumped Distribution

• Random Distribution

• Population Distribution

Answer explanation

Uniform Distribution refers to maximizing the space between individuals, ensuring an even distribution across a given area. This contrasts with Clumped and Random Distribution, which do not prioritize even spacing.

Which of the following describes a species that will soon be gone if nothing is done?

• Threatened

• Endangered

• Invasive

• Extinct

Answer explanation

A species described as 'endangered' is at risk of extinction in the near future if no conservation efforts are made. 'Threatened' indicates a less immediate risk, while 'invasive' refers to non-native species, and 'extinct' means no longer existing.

The number of variety of a species in a particular region is known as

• biodiversity

• species diversity

• genetic diversity

• ecosystem diversity

Answer explanation

The number of varieties of a species in a region is referred to as species diversity. This term specifically focuses on the different species present, distinguishing it from other types of diversity like genetic or ecosystem diversity.