Quiz this Friday!
Ecology ‘Quest’ Review
1. List the following in order from smallest to
largest: biome, ecosystem, biosphere, habitat
2. Identify the following items in the photo:
(a) a species
(b) a population
(c) a community
(d) an ecosystem
3. Describe the roles of photosynthesis and cellular
respiration in the carbon cycle.
4. Give an example of an abiotic reservoir.
5. (a) What do nitrifying bacteria do? (b) What do denitrifying bacteria do?
6. What is the difference between a habitat and a niche?
7. When similar species live in the same habitat, how is competition reduced?
8. Name the 5 main terrestrial biomes found in Canada.
9. The open ocean and a lake are both aquatic biomes. What abiotic factor makes the 2
biomes different?
10. What would happen if a plant from a deciduous forest were transplanted to the tundra?
11. The black-throated blue warbler migrates from the Caribbean to wetlands in northern
Ontario each spring, and then it flies back again in the fall. Why would the bird make such a
lengthy journey twice a year?
12. Photosynthesis is the most important process on Earth. Justify this statement.
13. Suppose that a herd of reindeer had been introduced
Year
Population
to a small island that had no reindeer on it. The table
1910
50
shows the population data 
1920
250
(a) Suggest why the population of reindeer was lower in
1930
500
1940 than in 1935.
1935
2000
(b) Predict the population in 1950 and 1960 and explain
1940
1400
your prediction.
14. When a predator catches its prey, it may appear that the prey species suffers. But there
are benefits to this type of interaction for the prey species as well. What are two ways in
which the prey species may benefit from the predator hunting them?
15. Bacteria can reproduce so quickly that, under ideal conditions, one bacterium could
produce enough bacteria to cover the entire planet in a few weeks. Why doesn’t this happen?
16. Suppose you had to create an imaginary animal and its predators are eagles. What
adaptations would you give this animal to avoid being caught by an eagle?