Understanding Biodiversity and Its Importance

What is biodiversity?

• The variety of life on Earth, including diversity within species, between species, and of ecosystems.

• The number of species in a given area.

• The genetic variation within a single species.

• The number of ecosystems in a country.

Which of the following is an example of an ecosystem with high biodiversity?

• A large sandy desert.

• A coral reef.

• A monoculture farm.

• A city park.

What does species diversity include?

• Only the number of species in an ecosystem.

• The genetic variation within a species.

• Both species richness and species evenness.

• The number of ecosystems in a region.

Why is genetic diversity important for a species?

• It allows species to adapt to changing environmental conditions.

• It increases the number of species in an ecosystem.

• It reduces the need for conservation efforts.

• It ensures that ecosystems have more habitats.

Which of the following is a provisioning service provided by biodiversity?

• Climate regulation.

• Nutrient cycling.

• Food and water.

• Recreational benefits.

What is a major threat to biodiversity?

• Habitat creation.

• Climate change.

• Increased genetic diversity.

• Species richness.

How does high species diversity contribute to ecosystem stability?

• It ensures that some species can fulfill the roles of others if they are lost.

• It reduces the number of species in an ecosystem.

• It makes ecosystems more vulnerable to pathogens.

• It decreases the genetic diversity within species.

What is an example of an ex-situ conservation method?

• Establishing protected areas.

• Restoring degraded ecosystems.

• Seed banks.

• Implementing sustainable practices.

Which of the following is a regulating service provided by biodiversity?

• Soil formation.

• Disease control.

• Spiritual benefits.

• Food production.

What is the impact of invasive species on native biodiversity?

• They increase the genetic diversity of native species.

• They outcompete native species for resources.

• They create new habitats for native species.

• They have no impact on native biodiversity.