Mass Extinction

What is a possible reason for extinction?

• The number of habitats falls below a critical level

• Too many resources

• Less competition

Tags

NGSS.HS-LS4-5

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

• overhunting

• evolution of new species to replace old ones

• major change in environment

• asteroid impact

Tags

NGSS.MS-ESS2-2

NGSS.MS-LS4-1

Which of these describes a species that has become extinct?

• fewer members of the species are dying than being born
• more members of the species are dying than being born
• very few members of a species are alive
• all members of a species have died

Tags

NGSS.MS-LS4-1

Which of the following is NOT a reason a species may become extinct?

• competition
• reproducing
• habitat loss
• overhunting

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

Suppose a pond dries up. What will most likely happen to the fish that lived there?

• They will learn to live on land.
• They will move to another pond.
• They will learn to breathe air.
• They will not survive.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

True or False? Many scientists think that an asteroid caused the dinosaurs to go extinct.

• True

• False

Tags

NGSS.MS-LS4-1

Species that are in danger of becoming extinct are called __________.

• endangered

• not lucky

• extinct

• in a jam

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

When a plant or animal becomes extinct, it is gone _______.

• forever

• until next week

• for 5 years

• to sleep

Tags

NGSS.MS-LS4-1

Evidence of an animal or plant that lived a long time ago on Earth is called a ________.

• fossil

• tiger

• extinct

• endangered

Tags

NGSS.MS-LS4-1

A ______________ species is on its way to becoming endangered or extinct.

• threatened

• cuddly

• sleeping

• fossil

Tags

NGSS.MS-LS2-1