Importance of Biodiversity Quiz

Which of the following best describes biodiversity?

• The variety of life in the world or in a particular habitat or ecosystem.

• The number of species in a given area.

• The genetic variation within a species.

• The number of ecosystems in a region.

Fill in the blank: Biodiversity helps in maintaining the balance of the ecosystem by providing __________.

• food and habitat for species

• clean water and air

• pollination of plants

• all of the above

Open-ended: Explain how the loss of a single species can affect an entire ecosystem.

Which of the following is a direct benefit of biodiversity to humans?

• Increased carbon dioxide levels

• Enhanced soil erosion

• Provision of medicinal resources

• Decreased water quality

Fill in the blank: The process by which different species evolve to fill different ecological niches is known as __________.

• natural selection

• adaptive radiation

• genetic drift

• speciation

Open-ended: Describe the role of keystone species in an ecosystem.

Match the following terms with their correct definitions:

Which of the following is NOT a way in which biodiversity contributes to ecosystem stability?

• Providing a variety of food sources

• Increasing the resilience of ecosystems to disturbances

• Reducing the spread of diseases

• Decreasing the genetic variation within species

Fill in the blank: __________ is the term used to describe the interconnectedness of all living organisms and their physical environment.

• Biodiversity

• Ecology

• Symbiosis

• Ecosystem

Open-ended: How does biodiversity contribute to the sustainability of agricultural systems?