Extinction

According to most scientists, what is the biggest cause of most mass extinctions?

• overhunting

• evolution of new species to replace old ones

• major change in environment/habitat

• asteroid impact

Tags

NGSS.MS-LS4-1

Which of the following can cause mass extinctions? Choose 3

• Volcanoes and earthquakes

• climate change

• sea levels rising

• asteroids

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS4-1

Which scenario describes an example of extinction?

• Water pollution kills off all the fish that live in a small pond.

• Every individual in a species is killed by hunters or a lack of food.

• The cutting down of a tree forces a bird to build a new nest in another tree.

• A population of deer must move to a new forest when its original habitat is destroyed by fire.

Tags

NGSS.MS-LS4-1

Which of these describes a likely reason why a species would become extinct after a major environmental change?

• The environmental change means fewer predators are around.

• There are more homes for the species in the changed environment.

• The change in the environment opens new resources with less competition.

• There are not enough members of the species born with a trait necessary to survive in the new environment.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-5

Which of these could cause a mass extinction?

• a year-long drought

• a week long blizzard

• eutrophication of a pond (so many nutrients enter the pond that the plant growth takes over)

• a major change in global climate

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

When a species failed to adapt or compete it is called

• a shame

• speciation

• background extinction

• mating

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-5

What do humans do that put species at risk? choose 3

• pollution

• deforestation

• overuse of resources

• generate electricity

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

How do we know when ichthyosaurs became extinct?

• Because we don't have ichthyosaurs today

• an asteroid wiped out all the dinosaurs

• After a certain point in the fossil record, no ichthyosaur fossils are found.

Tags

NGSS.MS-LS4-1

How do we know there was a mass extinction after the red line layer?

• There are more fossils under the red line than over, suggesting organisms died off.

• There are more fossils over the red line than under, suggesting organisms died off.

• The red line shows a layer of rock that is different than the others.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Choose all the organisms shown in this fossil record picture that went extinct after the cretacious period.

• ammonites

• dyrosaurs

• tarbosaurus

• ichthyosaurs

• pterosaurs

Tags

NGSS.MS-LS4-1