Population Ecology
ICSE · Class 12 · Environmental Science
Practice quiz for Population Ecology — ICSE Class 12 Environmental Science. MCQs and questions with answers to test your preparation.
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Quick Quiz: Population Ecology
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What does the term population mean in ecology?
Which formula gives population density correctly?
Which factor influences population density?
What is a deme in population ecology?
Sample Questions
Which of the following can increase population size?
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Births, Immigration
Births and immigration increase population size, while deaths and emigration decrease it.
What does immigration mean in population ecology?
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Permanent addition of individuals to a population by movement from other locations
Immigration is the number of individuals permanently added to a population by movement from other locations.
What does emigration do to population size?
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It decreases population size as individuals permanently leave
Emigration causes population size to decrease because individuals permanently leave the population.
What is the correct expression for change in population size?
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N_t = N_0 + (B + I) - (D + E)
The change in population size is calculated as original population plus births and immigration minus deaths and emigration.
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