WorksheetsChanges in Ecosystems
Total questions: 13
Worksheet time: 13mins
The first organisms to live in an uninhabited area are called _______ _______?
Pioneer Species
Early settlers
First Eco-organism
Climax Species
Image "B" shows more biodiversity than image "A". Why?
Because "B" shows more different species than image "A"
Because image "B" has less different species than "A"
"A" has a greater number of same species plants so this statement is wrong.
Both images show the same biodiversity
What can biodiversity influence within an ecosystem?
how well the ecosystem recovers from a disturbance
how well the ecosystem grows after rain
how poorly the ecosystem responds to a drought
As flowering plants, shrubs small trees and small animals move back into an environment, we call this, this type of succession.
tertiary succession
secondary succession
primary succession
none of the above
After a secondary succession event what is most likely to occur in that ecosystem?
bare rock will be exposed to lichens and moses
completely different grasses and wildflowers will grow
similar types of plants and animals will repopulate the area
the soil will not grow plants because of salinity
What is primary succession in an ecosystem?
it is when a disaster happens and the soil is left intact
it is when a disaster happens and the soil is completely gone.
it is when the first organisms settle an area
it is when nature revives itself
What is secondary succession in an ecosystem?
The environment is destroyed but the soil is left intact
The environment is destroyed but nothing is left but bare rocks
The environment revives itself twice
The environment fails to revive itself
What is a succession event?
This is when species in a environment are replaced by new species
This is when a natural disaster happens
This describes an extinction event
This is when new species appear in an existing environment
