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WorksheetsExploring Biodiversity and Ecosystems
Total questions: 14
Worksheet time: 7mins
What is biodiversity?
The variety of life in an ecosystem
The number of trees in a forest
The amount of rainfall in a year
The temperature range of a region
What is the first stage of ecological succession?
Climax community
Pioneer stage
Intermediate stage
Secondary stage
Which of the following is an example of a negative human impact on biodiversity?
Planting trees
Deforestation
Creating national parks
Recycling
What is primary succession?
Succession that occurs where no soil exists
Succession that occurs in areas where soil is already present
The final stage of succession
The process of species extinction
Which of the following best describes secondary succession?
It occurs in an area where no life has existed before
It occurs in areas where a disturbance has destroyed an existing community but left the soil intact
It is the first stage of ecological succession
It is the process of soil formation
Explain why ecosystems with high biodiversity are more resilient to changes.
They have more species that can fill ecological roles
They have fewer species competing for resources
They have a single dominant species
They are less complex
Which of the following is a consequence of reduced biodiversity?
Increased ecosystem stability
Decreased sustainability
Enhanced genetic variation
Improved resource availability
Describe the difference between primary and secondary succession.
Primary succession occurs in areas without soil, secondary occurs in areas with existing soil
Primary succession is faster than secondary
Primary succession involves only plant species, while secondary involves animal species
Primary succession occurs in water, while secondary occurs on land
What is the climax community in ecological succession?
The first community to colonize an area
The final, stable community in succession
A community that is constantly changing
A community with low biodiversity
What is an example of a pioneer species in primary succession?
Oak trees
Lichens
Grasshoppers
Wolves
Which of the following provides energy for an ecosystem?
Predators
Decomposers
Consumers
Producers
Sustainability in an ecosystem refers to -
The ability of an ecosystem to be resilient and biodiverse
The ability of an ecosystem to become easily extinct
It is the same as if an ecosystem has limited species
The ability of an ecosystem to not change because environments stay the same
An arid ecosystem is unable to progress through succession, why do you think this is?
An arid environment moves too quickly to see succession occur
Arid areas lack water, limiting resources
Arid areas will have a lot of water so organisms do not need to compete
Arid areas of an abundance of nutrients in the soil so succession doesn't need to happen
The term used to describe a specific type of organism which can reproduce.
Community
Succession
Species
Population
