Dynamic and Resilient Ecosystems

an interacting group of various species (populations) in a common location

• succession

• pioneer species

• colonize

• dominate

• community

Tags

NGSS.MS-LS2-2

A natural disaster or human event/problem has badly damaged an existing ecosystem. There are still some plants/animals who have survived and are trying to recover.

• mature community

• secondary succession

• primary succession

• disruption

Tags

NGSS.MS-LS2-4

the series of predictable changes that occur in a community over time

• succession

• pioneer species

• colonize

• dominate

• community

first species to populate an area (in nature)

• succession

• pioneer species

• colonize

• dominate

• community

Less snow falls during a warmer-then-normal winter in the Yellowstone ecosystem. The thinner snow cover on the ground allows for more plants to be visible than when the snow cover is thick. Describe how a winter with less snowfall might affect the populations of willow, aspen, and cottonwood trees.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Higher biodiversity =

• higher ecosystem resilience

• lower ecosystem resilience

Tags

NGSS.MS-LS2-5

The gradual, predictable change from one community of organisms to another is called ___.

• climax community

• ecological succession

• ecosystem succession

• community

Tags

7.10c

What is the role of decomposers in a food web?

• They produce their own food through photosynthesis.

• They consume living plants and animals.

• They break down dead organisms and recycle nutrients back into the ecosystem.

• They are the primary source of energy for all other organisms.

Tags

NGSS.MS-LS2-3

A ____________ ecosystem can better withstand and recover from disasters.

• Young

• Old

• Healthy

• Dying

a series of changes that occur in an area (ecosystem) where no soil or organisms existed

• mature community

• secondary succession

• primary succession

• disruption