Assessment FOR Learning · Prerequisite check · Strand F
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Purpose: Identify gaps in basic ecology (food chains, energy flow, biotic/abiotic) before Unit 5.
Question 1 Prereq
[3]
Define and give an example: producer, primary consumer, secondary consumer, decomposer.
Question 2 Prereq
[2]
Explain why energy transfer between trophic levels is approximately 10% efficient. What happens to the other 90%?
Question 3 Prereq
[2]
Distinguish biotic and abiotic factors. Provide three examples of each.
Question 4 Concept
[3]
Define population, community, ecosystem, biosphere — the levels of ecological organization.
Question 5 Skills
[2]
A scientist uses mark-recapture to estimate fish in a lake. They tag 50 fish, return them, then sample 80 fish later, finding 10 marked. Estimate population size N (Lincoln-Petersen).
Question 6 STSE
[3]
List one human activity that is decreasing biodiversity in Canada and one conservation strategy used to mitigate it.
Question 7 Reflection
[ungraded]
Are you more comfortable with the math (growth equations) or the qualitative ecology (succession, community)? Why?
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