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Answer: 4. Species interaction

Key idea: Attributes of a population are properties of the group as a whole, not of individuals or of interactions between different species.

Sex ratio, natality (birth rate) and mortality (death rate) are all population-level characteristics, along with age distribution and population density. Species interaction (competition, predation, etc.) occurs between populations of different species, so it is a community-level feature, not a population attribute.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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