Human Impact/ Ecosystem

Why might an invasive species overrun a native species in an ecosystem?

• Its population size is smaller than the native species

• It is more energy efficient, so it eats less food

• It is a predator of the native species

• It often has no natural enemies in that ecosystem

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

Fishermen have harvested certain fish to the point where the population of that fish is decreasing. This overfishing could cause ...

• ecosystems to be improved for future generations

• ecosystems to be severely damaged

• the restoration of environmental stability

• all other fish species to increase in number

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which of the following is NOT a possible result of DECREASING biodiversity?

• increased ecosystem stability

• extinctions

• loss of natural resources

• loss of potential foods & medicines

Tags

NGSS.MS-LS2-5

If the population of a certain predator increases, the population of its prey often _______.

• decreases

• increases

• does not change

• moves

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is the major cause for air pollution? 

• factories and cars
• cigarretes 
• deforestation
• oil spills

Tags

NGSS.MS-ESS3-4

What is the main way that invasive species get introduced to a new area?

• too much food

• human actions

• weather events

• moving there

How does plastic effect sea life?

• Plastic has no effect on sea life (neutral)

• Plastic provides habitats for sea life (positive)

• Plastic is often mistaken for food by sea life (negative)

Tags

NGSS.MS-LS2-4

Extreme weather conditions, such as floods, forest fires, & hurricanes, are called _______.

• climate change

• precipitation

• weather

• natural disasters

Tags

NGSS.MS-ESS3-2

What makes a species "invasive"?

• species that cannot adapt

• making another species leave so that it can move in

• moving to a new ecosystem where it does not naturally belong and taking resources from natives

• taking up too much space

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which threat to biodiversity causes all of the others?

• population growth

• pollution

• habitat destruction

• invasive species

Tags

NGSS.MS-LS2-5