Biodiversity Quiz Review

species that are critical to the functioning of an ecosystem

• mass extinction

• invasive species

• biodiversity

• endangered species

• keystone species

species that are in danger of extinction

• mass extinction

• invasive species

• biodiversity

• endangered species

• keystone species

species that are not native to a particular region

• mass extinction

• invasive species

• biodiversity

• endangered species

• keystone species

extinction of many species in a short period of time

• mass extinction

• invasive species

• biodiversity

• endangered species

• keystone species

the number and variety of different species in a given area

• mass extinction

• invasive species

• biodiversity

• endangered species

• keystone species

The absence of sea otters along the coast resulted in:

• an increase in biodiversity

• a reduction in kelp

• a decrease in biodiversity

• a reduction in sea urchins

Which ecosystem has the greatest amount of biodiversity?

• polar regions

• deciduous forest

• tundra

• tropical rainforest

Which is the single greatest threat to biodiversity?

• habitat loss

• invasive species

• pollution

• over-consumption

Wearing leopard fur coats is an example of:

• habitat loss

• invasive species

• pollution

• over-consumption

How do people benefit from biodiversity?

• aesthetic or personal enjoyment

• variety of food sources

• source of medicine

• all of the above