Changing Ecosystems, 6th grade

Pick The Correct Vocabulary Word For, (Ecological Succsesion.)

• An area in a ecosystem has new species.

• The Process of of one ecosystem gradually changing into another.

• The prosses of witch a Ecosystem is polluted.

• A area is destroyed.

(Fill in the blank) __________ is in new areas, or land with little vegitation.

• Secondary Succsesion

• Destroyed Ecosystem

• Primary succsesion

• Eutrophication

Fill in the blank: ___________ is in areas where exsisting ecosystems have been disturbed or destroyed.

• secondary succsesion

• Ecological Succsession

• primary succsesion

Climax Community is......

• A stable community that that no longer goes through major ecological changes.

• The balance through differrent parts of an ecosystem.

Describe Eutrophication

• The proccess of a land becoming nutrient rich

• The proccess of a body of water becoming nutrient rich.

• The proccess of the sky becoming polluted.

Fill in the blank: Dynamic equilibrium ________________________________________

• Describes the balance between different species in the ecosystem.

• Describes the balance between different populations in a ecosystem.

• Describes the balance between different parts of the ecosystem.

• all of the above.

What is recource extration?

• when contanamants are brought into the enviornment and causes negative change.

• Any activity that takes recourses from nature.

• when a species lives out side of it's natural range

_______ is when contanimants are brought into an enviornment and causes a negative change. (fill in blank.)

• Recourse extraction

• Nonnative Species

• Pollution

Fill in the blank:

________ species, are when a species lives out side off its natural range

• Unfarmiliar

• Nonnative

• Externial