Understanding Species Diversity Quiz

Which species plays a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community?

• Invasive species

• Keystone species

• Endemic species

• Indicator species

What term is used to describe species that are native to a particular area and are not found naturally anywhere else?

• Invasive species

• Keystone species

• Endemic species

• Native species

Which type of species can cause harm to the environment, the economy, or human health in areas where they are not native?

• Invasive species

• Keystone species

• Endangered species

• Native species

What type of species provides important clues about the health of an ecosystem?

• Keystone species

• Invasive species

• Indicator species

• Endemic species

Which term describes species that originally live in the area where they are found, not introduced by human activity?

• Endemic species

• Native species

• Invasive species

• Endangered species

What is the term for species that are at risk of extinction throughout all or a significant portion of their range?

• Invasive species

• Keystone species

• Endangered species

• Native species

Which species can drastically change the habitat they invade, often outcompeting native species for resources?

• Keystone species

• Invasive species

• Indicator species

• Endemic species

Why are keystone species important for conservation efforts?

• They can adapt to any environment.

• Their removal can cause significant changes in the ecosystem.

• They are the most numerous species in their ecosystems.

• They have no natural predators.

What does the presence of certain indicator species signal about an ecosystem?

• It is overpopulated.

• It has a high level of biodiversity.

• It is experiencing environmental stress or change.

• It is dominated by invasive species.

Why are endemic species particularly vulnerable to extinction?

• They have a large population size.

• They are resistant to diseases.

• They have a limited geographic range.

• They can easily adapt to new environments.