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Worksheets10BD 4-3: Ecological Succession
Total questions: 20
Worksheet time: 14mins
What is the first stage of primary succession?
Climax community
Pioneer species colonization
Secondary succession
Intermediate species
Which of the following is an example of a pioneer species?
Oak tree
Lichen
Pine tree
Maple tree
What distinguishes primary succession from secondary succession?
Primary succession occurs on existing soil, while secondary succession starts on bare rock.
Primary succession starts on bare rock, while secondary succession occurs on existing soil.
Both occur on existing soil.
Both start on bare rock.
Which factor is most likely to affect the rate of ecological succession?
The color of the soil
The availability of sunlight
The shape of the leaves
The height of the trees
Explain why pioneer species are crucial in the process of primary succession.
They provide shade for other plants.
They break down rock to form soil.
They consume other plants.
They prevent erosion.
Sequence the steps for primary succession in a terrestrial environment.
rock
lichen
mosses
grasses
Which of the following best describes a climax community?
A community that is constantly changing
A stable and mature community
A community dominated by pioneer species
A community in the early stages of succession
During secondary succession, which of the following events is most likely to occur first?
Growth of large trees
Colonization by grasses and weeds
Formation of bare rock
Establishment of a climax community
How does the presence of a climax community affect biodiversity?
It decreases biodiversity.
It increases biodiversity.
It has no effect on biodiversity.
It eliminates all species except one.
Sequence the steps for secondary succession in a terrestrial environment.
grasses
herbs
shrubs
pine trees
oak trees
Analyze how natural disasters can influence secondary succession.
They prevent any form of succession.
They reset the succession process, allowing new species to colonize.
They speed up the process of reaching a climax community.
They have no impact on succession.
What role do intermediate species play in ecological succession?
They are the first to colonize an area.
They modify the environment, paving the way for climax species.
They are the last to appear in succession.
They prevent pioneer species from growing.
Which is the last type of plants to appear in the ecological succession of a forest?
grass
moss
oak trees
shrubs
Identify a factor that does not affect ecological succession.
Climate
Soil composition
Animal migration
The color of the sky
Which stage of succession is characterized by the establishment of shrubs and small trees?
Pioneer stage
Intermediate stage
Climax stage
Primary stage
Evaluate the impact of human activities on ecological succession.
Human activities have no impact on succession.
Human activities can accelerate or hinder succession.
Human activities only accelerate succession.
Human activities only hinder succession.
What is the primary difference between pioneer species and climax species?
Pioneer species are larger than climax species.
Pioneer species are more diverse than climax species.
Pioneer species are the first to colonize, while climax species are the last.
Pioneer species are the last to colonize, while climax species are the first.
Predict how a change in climate might alter the stages of succession in a given area.
It would have no effect on succession stages.
It could change the types of species that dominate each stage.
It would eliminate all stages of succession.
It would speed up the process to reach a climax community.
Select what kind of succession the following example represents:
A volcano erupts in the middle of the ocean. As the lava flows into the ocean, new rock is formed.
After a volcanic eruption, volcanic rock is present (but no soil). Label the following illustrations with the correct order of succession.
Large Trees
Shrubs and Bushes
Bare Rock
Lichens
Small Annual Plants
Grasses
