Changes in Ecosystems

When an area undergoes a disaster, such as a forest fire, and the area is left with soil, it is called ________________________ ________________________.

• urbanization

• secondary succession

• primary succession

• biodiversity

Tags

NGSS.MS-LS2-4

______________________ is an increase in the amount of people living in urban areas.

• urbanization

• conservation

• stewardship

• eutrophication

Tags

NGSS.MS-ESS3-4

The number and variety of organisms is _____________________________.

• eutrophication

• conservation

• biodiversity

• urbanization

Tags

NGSS.MS-LS2-5

The protection and wise use of natural resources is called ______________________________.

• biodiversity

• urbanization

• succession

• conservation

Tags

NGSS.MS-LS2-5

A __________________ _____________________ is the first species to appear after a disaster in an area.

• pioneer species

• primary succession

• keystone species

• secondary succession

When a disaster strikes, such as a volcano erupts, and the area is left with only bare rock, it is called _____________________________ _______________________.

• primary succession

• secondary succession

• natural eutrophication

• biodiversity

Tags

NGSS.MS-LS2-4

___________________________ is the careful and responsible management of a resource.

• urbanization

• conservation

• stewardship

• biodiversity

A __________________ ____________________ is the species that an ecosystem relies on to keep it strong.

• pioneer species

• native species

• invasive species

• keystone species

Tags

NGSS.MS-LS2-4

___________________________________ happens when too many nutrients get into a body of water and cause algae to grow.

• succession

• eutrophication

• biodiversity

• urbanization

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How is secondary succession different from primary succession?

• Secondary succession occurs after a disturbance in an area that was previously uninhabited.

• Secondary succession occurs after a disturbance in an area in which the soil has remained intact.

• Secondary succession occurs over a longer period of time than primary succession.

• Secondary succession occurs when animals are introduced to an area that had only plants.