Lesson3: Changing Ecosystem

A slow change in an environment

No change

A change that takes days in an environment

Abiotic change

the beginning of a new ecological succession.

the rocks in a new environment.

the fire that will cause destruction.

an area that reaches its greatest growing potential.

True

False

Bushes and Shrubs

Mosses and Lichens

Oak trees

A rose Bush

True

False

A)

primary succession occurs

B)

secondary succession occurs

C)

a climax community comes into existence

D)

a different type of biome emerges

Primary

Secondary

Primary Succession

Secondary Succession

A)

The algae use so much of the oxygen in the water that fish die, decay and add to the build up of soil.

B)

The algae become soil.

C)

The growth of the algae causes pollution to increase.

D)

The presence of the algae encourages sediment to drop out of streams into the pond.