Biodiversity Quiz

What does 'biodiversity' refer to?

• The variety of life on Earth

• The number of ecosystems

• The extinction of species

• The genetic makeup of organisms

How many species have scientists identified?

• 20 million

• 5 million

• 10 million

• 1.4 million

What is one component of biodiversity?

• Diversity of weather

• Diversity of landscapes

• Diversity of climates

• Diversity of genes

Which of the following is an example of a freshwater ecosystem?

• Coral Reef

• Sand Dune

• Rocky Coast

• Lake

What is the definition of an ecosystem?

• A collection of non-living things

• A group of species living in isolation

• A large geographical area with similar climate

• A community of microorganisms, animals, and plants interacting with each other

Why does high biodiversity create a more stable environment?

• More species lead to more links in food chains

• Fewer species lead to less competition

• More pollution leads to more adaptation

• Less genetic variation leads to stability

What is one benefit we get from biodiversity?

• Increased pollution

• Fewer medicines

• More food

• Less oxygen

What alarming rate is the Earth losing species?

• 3 species per hour

• 10 species per day

• 5 species per month

• 1 species per week

What does species diversity describe?

• The variety of species and their abundance in an ecosystem

• The climate of a specific area

• The number of ecosystems in a region

• The genetic variation within a species

What is the Insurance Hypothesis?

• Biodiversity has no impact on ecosystems

• Biodiversity leads to more pollution

• Biodiversity decreases the number of species

• Biodiversity ensures ecosystems against decline in functioning