Human Impact and Biodiversity

TRUE or FALSE? Invasive species can be introduced to an ecosystem accidentally/

• True

• False

The largest threat to biodiversity is

• bacteria

• humans

• fungi

• plants

Tags

NGSS.MS-LS2-5

Which of the following pose a threat to biodiversity? Choose all that apply.

• invasive species

• habitat destruction

• population growth

• pollution

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Why is habitat fragmentation hazardous to animals?

• Habitat fragmentation does not pose a threat to animals

• Habitat fragmentation causes loss of habitat for many organisms

• Habitat fragmentation destroys an entire habitat

• Habitat fragmentation kills animals

Tags

NGSS.MS-LS2-4

Which threat to biodiversity causes all of the others?

• population growth

• pollution

• habitat destruction

• invasive species

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

• too much food

• human actions

• weather events

• moving there

Tags

NGSS.MS-ESS3-4

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

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-LS2-1

NGSS.MS-LS2-4

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.MS-LS2-2

NGSS.MS-LS2-4

Different species of plants and animals in an area is _______.

• ecosystem

• biodiversity

• variation

• differences

Tags

NGSS.MS-LS2-5