WorksheetsEcological Succession
Total questions: 20
Worksheet time: 12mins
An increase in biodiversity over time, after a natural or manmade disturbance. (a)
Primary succession occurs in an area that...
has soil
has no soil
has lichen
none of these
Which type of succession will occur once lava cools into rock?
primary succession
secondary succession
The first organisms to colonize an area and begin the process of ecological succession
native species
climax community species
invasive species
pioneer species
Which type of species is shown?
primary species
secondary species
pioneer species
intermediate species
What type of ecological succession is shown?
primary succession
secondary succession
tertiary succession
climax succession
What is the main difference between primary and secondary ecological succession?
Primary begins without soil; Secondary begins with existing soil
Primary is the first state and secondary is the second stage
Primary builds plant community; secondary builds animal community
Primary begins with existing soil; Secondary begins without soil
Which scenario below is most likely to undergo primary succession?
Glaciers melt and leave exposed rock
Plants die from drought and decompose
Land is bulldozed and soil remains
A forest fire sweeps through a climax community
Which of the following is the correct order of ecological succession?
grasses-shrubs-lichens-trees
lichens-shrubs-trees-grasses
lichens-grasses-shrubs-trees
grasses-lichens-shrubs-trees
All of the following contribute directly to soil formation except...
lichens
decomposition of organisms
volcanic eruptions
weathering and erosion of rock
What is an example of a disturbance that could bring about secondary succession?
wildfires
a volcanic eruption covers an island in lava
glaciers retreat and expose new rock
What type of ecological succession is being shown?
primary succession
secondary succession
tertiary succession
aquatic succession
Which term describes a steady and stable community?
peak community
turf community
climax community
disturbed community
Which type of disturbance can be beneficial to ecosystems and communities?
volcanic eruptions
forest fires
introduction of invasive species
deforestation
Which takes place faster - primary or secondary succession?
primary succession
secondary succession
both types take about the same amount of time
Which of the following is NOT a pioneer species?
shurbs
lichen
microorganisms
fungi
What type of ecological succession is shown?
primary succession
aquatic succession
secondary succession
tertiary succession
Ecological succession increases biodiversity.
True
False
The final stage of ecological succession is...
mature tree growth
pioneer community
climax community
marsh or meadow
Bare rock communities must first undergo (a)
