Which one of the following is one of the characteristics of a biological community?
Correct answer: A. Stratification
- A. Stratification
- B. Natality
- C. Mortality
- D. Sex-ratio
Explanation
The characteristics of a biological community are dominance, species diversity, trophic organization, stratification, dynamism and stability. Organisms are not uniformly distributed throughout a community. They usually occur in definite zones.This spatial arrangement of populations is called stratification. Structurally, a community may be divided horizontally into sub-communities. This horizontal division constitutes the zonation in the community. Natality, mortality, age structure and sex ratio are the basic characteristics of a population.
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About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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