CHAPTER 7 TEST

Front

What percentage of organisms become extinct during a mass extinction?

Back

50% of organisms.

Front

How many mass extinctions have occurred according to the book?

Back

5 mass extinctions.

Front

What is an ecosystem that can bounce back from disturbances called?

Back

A resilient ecosystem.

Front

Which environment has more biodiversity: farmland, ocean waters, tundra, or desert?

Back

Ocean waters have more biodiversity.

Front

Where do captive breeding programs typically take place?

Back

At a zoo.

Front

Define mass extinction.

Back

A mass extinction is an event where a significant percentage of all living species become extinct in a relatively short period of geological time.

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem.

Front

What is a stable ecosystem?

Back

A stable ecosystem is one that remains relatively unchanged and maintains its structure and function over time.

Front

What is the difference between a resilient ecosystem and a resistant ecosystem?

Back

A resilient ecosystem can recover from disturbances, while a resistant ecosystem can withstand disturbances without changing.

Front

What role do zoos play in conservation?

Back

Zoos often participate in captive breeding programs to help preserve endangered species.