Extinction events

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 due to extreme natural events

• asteroid impact

Tags

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 species is extinct?

• woolly mammoth
• giant panda
• bald eagle
• green sea turtle

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

What to carnivores eat?

• Meat

• Plants

• Plants & Meat

Tags

NGSS.MS-LS2-1

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

NGSS.MS-LS4-2

 Which is LEAST LIKELY to push a species toward extinction?  
         

• a.   Cutting down entire forest 
• b.  Putting animals in a zoo 
•  c.   Polluting mountain streams 
• d.   Introducing new species to an ecosystem with no known natural predator    

Tags

NGSS.MS-LS2-4

What would most likely happen if a bird species had fewer and fewer offspring each year?

• The species would move to another ecosystem.
• There would be too many birds.
• The species would become endangered.
• Predators of the species would increase in number.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

How many mass extinctions have occurred on Earth?

• 3

• 4

• 5

• 6

Tags

NGSS.MS-LS4-1