Florida Science Grade 6

Section 1: How Ecosystems Change

How Ecosystems Change

1.
Primary succession begins in an area without __________.
A)air
B)wind
C)sunlight
D)soil
2.
The gradual changes that happen in the types of species living in a region are called __________.
A)community
B)balance
C)permafrost
D)succession
3.
After a house is torn down, the land it stood on begins to have grass and weeds grow from the soil. What is this an example of?
A)pioneer species
B)climax communities
C)secondary succession
D)primary succession
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