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AP Biology Mass Extinctions

Total questions: 17

Worksheet time: 13mins

Name
Class
Date
1.
At the end of the Mesozoic Era there was a mass extinction.  Which of the following is attributed as being the main cause?
a)
asteroid or comet impact
b)
major volcanic eruption
c)
earthquakes
d)
climatic changes
2.
What is a mass extinction?
a)
When all the species in a particular area on earth suddenly go extinct
b)
When multiple species from all over the earth suddenly go extinct 
c)
When one species goes extinct due to habitat changes
d)
When all life on earth is wiped out 
3.

______ happened 360 MYA.

a)

Ordovician Extinction

b)

Devonian Extinction

c)

Permian Extinction

d)

Triassic Extinction

e)

Cretaceous Extinction

4.

Amphibians, reptiles and corals were some creatures hardest hit by this extinction period because of shifting continental plates that lead massive volcanic activity.

a)

Ordovician Extinction

b)

Devonian Extinction

c)

Permian Extinction

d)

Triassic Extinction

e)

Cretaceous Extinction

5.

Which extinction is considered the largest mass extinction in Earth's history? Basically 96% of all species on Earth disappeared.

a)

Ordovician Extinction

b)

Devonian Extinction

c)

Permian Extinction

d)

Triassic Extinction

e)

Cretaceous Extinction

6.

Rapid drop in global temperature caused this mass extinction since many species could not survive the cooler waters and much of the water was stored in glaciers.

a)

Ordovician Extinction

b)

Devonian Extinction

c)

Permian Extinction

d)

Triassic Extinction

e)

Cretaceous Extinction

7.

This mass extinction occurred when there was massive volcanic activity that was thought to have occurred because of an asteroid that hit Earth.

a)

Ordovician Extinction

b)

Devonian Extinction

c)

Permian Extinction

d)

Triassic Extinction

e)

Cretaceous Extinction

8.

Which mass extinction included the extinction of the dinosaurs?

a)

Ordovician Extinction

b)

Devonian Extinction

c)

Permian Extinction

d)

Triassic Extinction

e)

Cretaceous Extinction

9.
 Which is LEAST LIKELY to push a species toward extinction?  
         
a)
a.   Cutting down entire forest 
b)
b.  Putting animals in a zoo 
c)
 c.   Polluting mountain streams 
d)
d.   Introducing new species to an ecosystem with no known natural predator    
10.
The Florida panther is a large cat related to lions. Panthers eat deer, rodents, and farmers' livestock. Panthers once lived in Tennessee. Which of these most likely caused panthers to disappear from Tennessee?
a)
Panthers in Tennessee were unable to reproduce.
b)
People hunted panthers and destroyed their habitats.
c)
Natural predators killed and ate all the panthers in Tennessee.
d)
Panthers in Tennessee ran out of food. 
11.
Humans are causing extiction in which ways?
a)
By over hunting animals for food or products.
b)
By destroying the natural habitat of species.
c)
By polluting the environments of the world.
d)
All of the above.
12.
Which of the following was a natural factor that caused extinctions? 
a)
Over harvesting
b)
Changes in the oxygen levels
c)
Pollution
d)
Habitat destruction
13.

There have been _____ mass extinction events in Earth's history.

a)

3

b)

4

c)

5

d)

6

14.
How did the Earth change 2.5 billion years ago when many organisms began using photosynthesis to make food?
a)
the amount of oxygen in the atmosphere increased
b)
mass extinction occurred
c)
the oceans became larger
d)
rainfall increased
15.

Triassic-jurassic Extinction:

a)

Small marine organisms died out. (440 mya)

b)

Many tropical marine species went extinct. (365 mya)

c)

The largest mass extinction event in Earth's history affected a range of species, including many vertebrates. (250 mya)

d)

The extinction of other vertebrate species on land allowed dinosaurs to flourish. (200 mya)

e)

wiped out nonavian dinosaurs (65.5 mya) (AKA K-T extinction event)

16.

Permian-triassic Extinction:

a)

Small marine organisms died out. (440 mya)

b)

Many tropical marine species went extinct. (365 mya)

c)

The largest mass extinction event in Earth's history affected a range of species, including many vertebrates. (250 mya)

d)

The extinction of other vertebrate species on land allowed dinosaurs to flourish. (210 mya)

e)

wiped out the dinosaurs (65.5 mya)

17.

Cretaceous-tertiary Extinction:

a)

Small marine organisms died out. (440 mya)

b)

Many tropical marine species went extinct. (365 mya)

c)

The largest mass extinction event in Earth's history affected a range of species, including many vertebrates. (250 mya)

d)

The extinction of other vertebrate species on land allowed dinosaurs to flourish. (210 mya)

e)

wiped out the dinosaurs (65.5 mya)

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