Extinction notes Review

How many Mass extinctions has Earth experienced?

• 1

• 2

• 3

• 4

• 5

Tags

NGSS.MS-LS4-1

Extinction is a part of life, and animals and plants disappear all the time. About __________ of all the organisms that have ever existed on our planet are now extinct.

• 100%

• 98%

• 75%

• 50%

• 25%

Tags

NGSS.MS-LS4-1

A __________________ event is when species vanish much faster than they are replaced. This is usually defined as about 75% of the world's species being lost in a 'short' amount of geological time - less than 2.8 million years.

• Mass extinction

• Endangered species

• Elimination

• Eradication

Tags

NGSS.HS-LS4-5

Humans can cause species to become endangered or extinct. What other factors could cause species to go extinct? (choose all that apply)

• asteroid strikes

• disease

• Lack of food

• Better adapted competition

• Loss of habitat

Tags

NGSS.HS-LS4-5

NGSS.HS-ESS3-1

True or False: Extinctions are more common on islands

• true

• false

Tags

NGSS.HS-LS4-5

Which of the following is not a reason that island extinctions are more common?

• Islands are isolated, things can’t escape

• Island population sizes are small and therefore easy to wipe out

• Island ecosystems are delicate, and can be disturbed by invasive species

• more opportunities to find a mate (mates are more available)

________________, many of which are introduced by humans, are also threatening ecosystems all over the world. Introduced species compete with local species for resources and often diminish the quality of biodiversity in the area, sometimes causing extinction. These are just some of the devastating changes caused by humans.

• Endangered Species

• Native Species

• Extinct species

• Invasive species

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

NGSS.MS-LS2-5

Looking at the graph of the wolf population on Isle Royale. What has happened to the wolf population since 2004 until now?

• The wolf population has increased

• The wolf population has decreased

• The wolf population has stayed the same

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

The death of the last individual of that species.

• Extinction

• Elimination

• Eradication

• Survival

Tags

NGSS.MS-LS4-1