5B. Community Patterns Quiz

Why does secondary succession occur faster than primary succession?

• the environmental conditions are more extreme in primary succession

• there are more pioneer species in secondary succession

• fewer changes must occur in secondary succession

• there are more trophic levels in secondary succession

Which of the following sequence MOST likely represents ecological succession on a recently abandoned wheat field?

• flowering plants → native trees → shrubs → grasses

• native trees → shrubs → flowering plants → grasses

• shrubs → grasses → native trees → flowering plants

• grasses→ flowering plants → shrubs → native trees

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What effect do invasive species have on the native species in an area?

• They have a positive effect by improving the overall health of an ecosystem

• They have a negative effect by taking away habitat and resources from the native species

• They have no effect on the native species

• They provide a little competition between native and non native species

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Biodiversity refers to

• extinct species

• nonrenewable resources

• the variety of species on Earth

• the rate of species decline

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How is primary succession different from secondary succession?

• Primary succession starts with soil.

• Secondary succession start with bare rock, with lichens and moss.

• Primary succession starts with bare rock, with lichens and moss.

• Secondary succession starts with soil.

In the last 50 years the population of wild animals has reduced by

• 40%

• 50%

• 60%

• 70%

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Biodiversity equals ____________which is what we need most of all.

• stability

• equality

• instability

• happiness

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One of the 4 goals of saving our planet involves energy. We should phase out _________and replacing them with renewables.

• wind energy

• solar energy

• tidal energy

• fossil fuels

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What are some potential consequences of climate change? (select 2 correct answers)

• The sea levels will rise putting seaside towns and cities at risk of drowning

• The sea levels will drop putting seaside towns and cities at risk of drowning

• More extreme weather

• Animals will be able to adapt to the changes

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The MAIN greenhouse gas responsible for Climate Change is:

• nitrogen

• carbon dioxide

• carbon

• methane

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