Name ___________________________________________Date_____________________________ Section _________
Science: Ecosystems Unit Review
This review will help you study for the Unit Test. It can be answered in point form. The Unit Review is due test day! (Monday
December 10th!).
1. Definitions to know:
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Ecosystem, Biome, Abiotic, Biotic, organisms, ecological succession, photosynthesis, invasive species, cellular
respiration, producers, decomposers, predator, prey
2. Defining an ecosystem: are the following examples of ecosystems? Why or why not?
 Northern Manitoba
 A greenhouse
 A puddle of water
3. Be able to answer which parts of an ecosystem are biotic/abiotic. For example, a human needs:
 Air/oxygen
 Water
 Food
 Shelter
Which of the above are biotic? Abiotic?
4. Be able to describe ecological succession (def’n) and answer the following questions:
 What is primary succession?
 What is secondary succession?
 List some events that start primary succession.
 List some events that start secondary succession.
*If you are missing these notes, watch the following video: http://www.youtube.com/watch?v=V49IovRSJDs
5. Identify and describe positive and negative examples of human interventions that have an impact on
ecosystems.
Invasive species What is an invasive species? How does it get into a new ecosystem? Are all invasive species good/bad?
What are some characteristics (traits) of invasive species that help them succeed? Give 2 examples of invasive species
6. Ecosystem Jenga Lab:
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What different parts make up an ecosystem (Hint: what parts of an ecosystem did the Jenga blocks
represent?)
 How do we know if an ecosystem is healthy?
 How do we know if an ecosystem is unhealthy?
 How can the non-living (abiotic) parts of an ecosystem be damaged?
 What did the tower of ecosystem blocks represent? What did taking a block out represent?
7. Food webs, food chains and ecological pyramids (Biological Budget Lab)
 What is a food web? Describe how species of all levels are connected in a food web. What can happen
to the food web if one of the species dies?
Name ___________________________________________Date_____________________________ Section _________
8. Photosynthesis
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What is photosynthesis? Why do plants need to do photosynthesis?
What does a plant use (need) to do photosynthesis?
What does a plant produce (make) when it does photosynthesis?
What is the word equation for photosynthesis?
Be able to draw a diagram of photosynthesis (long answer question)
Why are plants green?
How are plant cells different than animal cells?
Critical thinking question: why is photosynthesis such an important process for any ecosystem?
9. Cellular Respiration
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What is cellular respiration? Who does cellular respiration?
What is the word equation for cellular respiration?
10. Greenhouse Building and design
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What are some problems associated with getting fresh produce in Northern Manitoba? (include climate,
ecosystem, transportation, cost)
Based on the presentation from Peter Kidd and the research performed in class, describe/draw some
features of a Northern greenhouse. What makes these features advantageous for a Northern
greenhouse?