Changing Ecosystem

Final illustration (#8) shows

• pioneer species

• climax community

• only biotic factors

• only abiotic factors

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The series of changes that occurs in an area where no soil or organisms exist is called

• pioneer species

• primary succession

• secondary succession

The first species to populate an area are called

• secondary succession

• pioneer species

• structural adaptation

The series of changes that occurs in an area where the ecosystem has been disturbed, but where soil and organisms still exist are called...

• Disasters

• Secondary succession

• Primary succession

A volcanic eruption will result in what kind of succession?

• Primary succession

• Secondary succession

A fire or natural disaster will result in what kind of succession?

• Primary succession

• Secondary succession

A species that influences the survival of many other species in an ecosystem is

• keystone species

• poaching

• extinction

Tags

NGSS.MS-LS2-5

Species that lack a _____________ are less able to adapt to and survive changes in the environment.

• habitat distruction

• diverse gene pool

• endangered species

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

A species brought into an ecosystem where it is not native is called a

• nonnative species

• native species

• nutrias

Tags

NGSS.MS-LS2-5

The number of different species in an area is called the area's

• economic value

• biodiversity

• poaching

Tags

NGSS.MS-LS2-5