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The number of individuals within a specific area or volume is the:
APopulation density
BPopulation size
CPopulation growth
DPopulation range
Answer & Solution
Correct answer: A. Population density
1. Size and density answer different questions about a population.
2. Population size, N, is the total number of individuals.
3. Population density is the number of individuals within a specific area or volume.
4. Two populations of equal size can have very different densities.
_Source: OpenStax Biology 2e (CC BY 4.0), Ch 45 'Population and Community Ecology', sections 45.1-45.4_
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