Biodiversity

the variety of life in the world or in a particular habitat or ecosystem

• biodiversity

• demography

• carrying capacity

• poaching

a species that is not native to a particular region

• endemic

• exotic

• endangered

• extinct

species that are native to and found only within a limited area

• endemic

• exotic

• endangered

• extinct

How many species are estimated to be living on Earth?

• between 10,000 and 100,000

• between 1 and 2 million

• between 500,000 and 1 million

• between 10 and 50 million

Which of the following would be most effective in slowing the loss of biodiversity?

• creating large parks/preserves in biodiversity hotspots

• requiring every country to maintain a seed bank

Why is biodiversity important to ecosystems?

• It helps populations adapt to ecological changes.

• It increases at each level of the food chain.

How can humans best help an endangered species avoid extinction?

• they can feed the animals
• they can put the animals in a zoo
• they can protect the animal’s habitat
• they can take the animal to new habitats