SNC1P Sustainability of Ecosystems REVIEW
1. Define the following terms:
Term
Ecology
Definition
Ecosystem
Population
Food Chain
Food Web
Consumer
Producer
Population
Community
Biome
2. Circle the organism that best represents a producer: mushroom, deer, maple tree, sun
3.
a) Write the word equation for PHOTOSYNTHESIS
b) What is the purpose of photosynthesis?
4.
a) Write the word equation for CELLULAR RESPIRATION
b) what is the purpose of cellular respiration?
5. What is the role of a decomposer in an ecosystem?
6.
a) What is carrying capacity?
b) Name at least three factors that affect population size
7. Define: abiotic and biotic
Abiotic
Biotic
8. Examine the following food chain:
plankton --> small fish --> larger fish --> bald eagle
a) label the organisms at each trophic level
b) which species are carnivores? _____________________________
c) which species is the top carnivore? ____________________________
d) which species is a producer?______________________________
e) what would happen to the amount of toxins as you move up the food chain, if the plankton
in the water were to take in toxic material? ________________________________________
__________________________________________________________________________
9. List 4 things you could do to help save the Earth (to encourage sustainability)
10. Make a food web based on the following species on a separate piece of paper. Try to use as many
organisms as you can. You may add some of your own organisms as well.
minnows
ducks
butterflies
mosquito larvae
earthworms grasses
tadpoles
frogs
mice
zooplankton raccoons
hawks
snails
11. Choose the correct answer for the following question:
Biodiversity is a term that is used to describe differences that exist in the:
a) abiotic environment
b) variety of organisms
c) sizes of populations
d) rates of reproduction
12. Examine the graph showing the numbers of lynx and hare pellets sold by trappers to the Hudson's
Bay Company between 1845 and 1935. Answer the following questions using complete sentences.
a) Describe how the changes in the two
populations seem to be related to one
another
13. What happens to the amount of energy available in a food chain? Explain.
14. What is overexploitation? Provide an example.
15. What are invasive species? Provide an example.
16. Examine the following food web and then answer the questions below:
a)) name two producers
b) name two herbivores
c) name two carnivores
d) what would happen if the ants died?
e) what would happen if you added
an invasive species that ate ferns?
f) what would happen if a toxin entered
the food chain (i.e. a pesticide)?
17. Provide TWO possible consequences on an ecosystem as a result of the following human activity:
Activity
Consequences
Construction
of roads and
buildings