Changes in Ecosystems
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| A drought would most likely cause a herd of wildebeests to | migrate further to find food.
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| What natural disaster might cause a species of fish to move from one pond to another? | flood
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| If soil is present, the type of succession is ... | secondary succession
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| What is the first step in the eutrophication of a pond? | excessive nutrients build up in the water
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| What would happen to the biodiversity of an area if it experienced a volcanic eruption? | Biodiversity would decrease
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| How can you distinguish between primary and secondary succession? | Primary succession begins with no soil; Secondary succession has soil present at the beginning.
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| What does biodiversity indicate about an ecosystem? | The ability to survive change.
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| Is it possible for a pond to become a meadow from eutrophication? | Yes
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| What are examples of pioneer species and what do they do? | Lichen and mosses that break down rock into soil.
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| What happens to the number of species in an ecosystem during succession? | The number increases as succession proceeds.
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| Are ecosystems constantly changing over time? | Yes
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| How do ecosystems change over time? | Biological communities are gradually being replaced by other communities.
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| Which ecosystem likely has the greatest biodiversity and highest sustainability? | Rain Forest
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| How does natural eutrophication affect a pond ecosystem? | It causes nutrients to build up.
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Created by:
lmsraiders
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