Species Diversity Quiz

What is species diversity?

• The genetic variation within a species

• The variety of species within an ecosystem or on the planet

• The number of individuals in a species

• The number of ecosystems in a region

Why is species diversity important for ecosystems?

• It reduces the need for conservation

• It helps ecosystems to adapt to changes and provide services

• It limits the growth of plant species

• It increases the number of predators

What influences the patterns of species diversity across the globe?

• The size of the ecosystem

• The number of predators

• Climate, geography, and evolutionary history

• Only the amount of sunlight

What are keystone species?

• Species that are the largest in size

• Species that are found only in one region

• Species that have a large impact on ecosystem health and stability

• Species that are the most abundant

Which of the following is a threat to species diversity?

• Natural selection

• Increased rainfall

• Species migration

• Habitat destruction