WorksheetsChapter 4, Lesson 2: Changes in Ecosystems
Total questions: 10
Worksheet time: 5mins
A species that has died out completely.
Extinct Species
Threatened Species
Endangered Species
Pioneer Species
A species that is in danger of becoming extinct.
Threatened Species
Pioneer Species
Endangered Species
Extinct Species
A species that is in danger of becoming endangered.
Endangered Species
Threatened Species
Extinct Species
Pioneer Species
The process of one ecosystem changing into a new and different ecosystem.
Primary Succession
Pioneer Community
Climax Community
Succession
The beginning of a community where few, if any, living things exist, or where earlier communities were wiped out.
Succession
Primary Succession
Pioneer Community
Climax Community
When a species dies out completely, the species is ___________________.
endangered
extinct
threatened
a pioneer community
The first species living in an otherwise lifeless area.
Pioneer Species
Primary Succession
Pioneer Community
Succession
The first community living in a lifeless area.
Pioneer Species
Climax Community
Pioneer Community
Primary Succession
The final stage of succession in an area, unless a major change happens.
Climax Community
Secondary Succession
Pioneer Community
Extinct Species
The beginning of a new community where an earlier community already exists.
Climax Community
Secondary Succession
Primary Succession
Succession
